--- May we leave the classroom now?
--- No; you _____. You ______ to leave until the bell rings.
A. can’t; are allowed B. mustn’t; aren’t allowed
C. needn’t; are allowed D. needn’t; aren’t allowed
Do you know what he was doing while _______?
A. he was away from his hometown
B. did he leave his hometown
C. he left his hometown
D. was he away from his hometown
The thief got all the information he needed to _______ the bank, but failed.
A. break down B. break out C. break into D. break through
________more about Chinese culture, Jack has decided to take Chinese folk music as his second course.
A. Learn B. Learned C. To learn D. To be learning
I’m sure that you will succeed in the end ___________ you give up halfway.
A. until B. till C. unless D. although
Jane's grandmother wanted to write children’s book for many years, but one thing or another always got in way.
A. a; 不填 B. the; the C.不填; the D. a; the
