Question at position 37 Mrs. Martinez ____________(teach) us English ________(since/for) four months.has taught, sincetaught, sinceis teaching, sincehas been teaching, sincehas been teaching, for

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Question restatement: Mrs. Martinez ____________(teach) us English ________(since/for) four months. Options: 1) has taught, since 2) taught,  since 3) is teaching, since 4) has been teaching, since 5) has been teaching, for.

Option 1: has taught, since. The present perfect (has taught) with since would be used for a state that started in the past and continues up to now, but 'since' typically pairs with present perfect simple (has + past participle) or present perfect continuous (has been + verb-ing). However, 'has taught since' implies a completed action continuing, which is less natural here because teaching is ongoing. The more natural pairing with ongoing action is 'has been teaching'. So this option is awkward and not the best match.

Option 2: taught, since. The simple past 'taught' describes a completed action in the past, which does not fit with the phrase 'four months' continuing up to now. Also, 'since' requires present perfect, not simple past. This option also conflicts with the time frame and tense usage.

Option 3: is teaching, since. The present continuous 'is teaching' indicates an action happening now, not over a period starting in the past. The phrase 'since' would require a perfect tense to connect to the present (has been teaching) when describing a period up to now. This option mismatches both tense and duration expression.

Option 4: has been teaching, since. The present perfect continuous 'has been teaching' correctly describes an action started in the past and continuing to now. However, with 'since' we typically specify a starting point, like 'since January' rather than a duration. While grammatically acceptable in many contexts, the more natural collocation for a duration using four months is 'for', not 'since' when emphasizing a duration rather than a starting point. This makes this option less natural for the given phrasing.

Option 5: has been teaching, for. The present perfect continuous 'has been teaching' correctly conveys ongoing action from a starting point in the past up to now. The preposition 'for' is used to indicate a duration of time (four months). This combination precisely matches the meaning: an ongoing teaching period of four months up to the present.

Summary of incorrect options: The first two options misuse the time expression with the chosen tense, failing to align with ongoing action or proper usage of since/for. The third option uses a present continuous too narrowly for a past-starting duration; the fourth option is close but uses since with a duration, which is less natural than for in this context. The fourth option also contrasts tense with a duration in a way that feels slightly off for typical English usage. The fifth option aligns both tense (present perfect continuous) and duration expression (for four months) in a natural, idiomatic way.

In short, the reasoning favors selecting the option where the ongoing action is described with a present perfect continuous and paired with the appropriate duration preposition, which is the fifth option.

Question at position 37 Mrs. Martinez ____(teach) us English (since/for) four months.has taught, sincetaught, sinceis teaching, sincehas been teaching, sincehas been teaching, for

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Question at position 37 Mrs. Martinez ____________(teach) us English ________(since/for) four months.has taught, sincetaught, sinceis teaching, sincehas been teaching, sincehas been teaching, for

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类似问题

Question at position 11 11. Every morning I ________ at 6:00am and _________ready to go to school at Fairmont Prep. am waking up, getwake up, getwake up, gotwake up, gettingwoke up, get

Question at position 13 Question B: We (B) (loves / are loving / is loving / love / loving) walking along the waterfront and trying different snacks. lovingloveis lovinglovesare loving

18. Which sentence uses the correct past tense of the non-action/stative verb "believe" (mental state)?

16. When you _____ (call), I ____(sleep).

Directions: Choose the best option between the past progressive and the simple past 13. The teenager ________ (text) while she ________ (drive). That is why her car ____ (crash)! (PS- NEVER drive and text at the same time students!!!)

21. The phone ___________________ (ring) during the meeting yesterday.

更多留学生实用工具

希望你的学习变得更简单

Question at position 37 Mrs. Martinez ____(teach) us English (since/for) four months.has taught, sincetaught, sinceis teaching, sincehas been teaching, sincehas been teaching, for

Question at position 11 11. Every morning I at 6:00am and _ready to go to school at Fairmont Prep. am waking up, getwake up, getwake up, gotwake up, gettingwoke up, get

16. When you _ (call), I (sleep).

Directions: Choose the best option between the past progressive and the simple past 13. The teenager ____ (text) while she (drive). That is why her car (crash)! (PS- NEVER drive and text at the same time students!!!)