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I wonder who drank all the milk yesterday. It ____ have been Jane because she was out all day. A. needn’t B. can’t C. could D. must Note: Is there a right answer to this question? I thought “couldn’t have been” and “shouldn’t have been” are needed here but they aren’t among the options. Do you think this question is doable?
Jun 18, 2013 12:58 PM
Answers · 8
B is acceptable, but "couldn't" seems the most natural to me because it's past tense. I wouldn't use "shouldn't".
June 18, 2013
You are absolutely correct. There is no right answer except for what you said: "couldn't have been"
June 18, 2013
the answer: C. could no need for negative since Jane could have drank the milk in the morning just before going out.
June 18, 2013
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Chinese (Mandarin), English
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