Your plan cannot be put into now because there are some practical difficulties for the time being.
A. affect
B. effect
C. words
D. effective
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She________ to the cinema for I saw her just now.
A. mustn’t have gone
B. may not go
C. can’t have gone
D. shouldn’t have gone
We are busy writing our papers __________ the guidance of our tutors.
A. under
B. in
C. with
D. by
I decided to leave the company next month, where _________I for exactly three years.
A. work
B. is working
C. will be working
D. will have worked
The sun is our energy source, and ______ it we would not be able to survive.
A. upon
B. despite
C. except
D. without