A. mustn’ t
B. can’ t
C. don’ t
D. needn’ t
第1题:
A:I haven't eaten all day.
B: You __ be very hungry.
A. should
B. have to
C. must
第2题:
A、have had worked
B、have been working
C、are working
D、work
第3题:
3.—__________ 1 go out for a while?
—No,you __________ You must finish your homework first.
A. Must,needn't
B. Can,may
C. May,mustn't
D. May,must
第4题:
A: I haven't sat down all day.
B: You _____be very tired.
A. could
B. have to
C. must
第5题:
A.Must; needn’t
B.Can; can’t
C.May; mustn’t
D.Can; mustn’t
第6题:
“一旦小玲写完了实验代码并且运行成功,她就不会延迟提交论文并且周一会给老师看。”以下表示正确的是:
A.finish(小玲,代码)∧work(代码) → delay_submit(小玲,论文) ∨ give(小玲,论文,teacher(小玲))
B.finish(小玲,代码)∧work(代码) ∧ ¬delay_submit(小玲,论文) ∧ give(小玲,论文,teacher(小玲))
C.finish(小玲,代码)∧ work(代码) ∧ ¬delay_submit(小玲,论文) ∧ give(论文,teacher(小玲))
D.finish(小玲,代码)∧ work(代码) → ¬delay_submit(小玲,论文) ∧ give(小玲,论文,teacher(小玲))