[ Grammar ]
. He __________ well since the exam started.
A. has not been sleeping
B. have not been sleeping
C. did not been sleeping
D. was not been sleeping

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Vocabulary › ViewWhat part of speech is the word ‘constant’?
A. noun
B. verb
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I can’t imagine __________ any privacy at all – that would be awful. ( not have)
A. don’t have
B. not have
C. not having
D. no having