I ________ go to bed until I ________ finished my work.
A. don’t; had
B. didn’t; have
C. didn’t; had
D. don’t; have
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You ______ drink it, it is poisonous.
A. can’t
B. needn’t
C. may not
D. mustn’t
The line is busy. Someone _______ telephone.
A. must be using
B. must have used
C. should be using
D. should have used
I _______ the League for 5 years so far.
A. joined
B. have joined
C. have been in
D. have taken part in
- Who jump the farthest in your school?- Henry ________.
A. does
B. jumps
C. has
D. is