The engineers must have worked out the design by the end of last week，_______？
| A．mustn’t they | B．hadn’t they |
| C．haven’t they | D．didn’t they |
______ him and then try to copy what he does.
| A．Mind | B．Glare at | C．Stare at | D．Watch |
---- Happy New Year to you!
---- ______! By the way, how do people ______ New Year in your country?
| A．Thanks; honour | B．Happy New Year to you; respect |
| C．It’s kind of you; congratulate | D．The same to you; celebrate |
I met an old friend __________ on the train yesterday.[
| A．by chance | B．on purpose | C．in fact | D．in return |
Her brother be at home now, because he was seen playing basketball in the stadium just now.
| A．mustn’t | B．needn’t | C．can’t | D．shouldn’t |
In the dark street, there wasn’t a single person _________ she could turn for help.
| A．that | B．who | C．from whom | D．to whom |