题目内容

She ______ her mother’s work since she was admitted into hospital.

A. is doing
B. has been doing
C. has done
D. has been done

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I ______ the incident as if it were yesterday.

A. am still to remember
B. have still been remembering
C. am being still remembered
D. still remember

I ______ swimming in the river and I always _____ to swim when I can.

A. am liking/have gone
B. am being liked/am going
C. like/go
D. have liked/have been going

We have sometimes accidents on this line, but no accidents ______ since last winter.

A. occur
B. have occurred
C. have been occurring
D. are occurring

He _____ on this essay for twenty minutes but he _____ only a hundred words.

A. has been working/has written
B. is working/writes
C. has worked/has been writing
D. works/is writing

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