They must have finished the task by the end of last month, ___________?
| A．mustn’t they | B．hadn’t they | C．haven’t they | D．didn’t they |
Everyone wants to live in a beautiful，comfortable and livable place，but not ________ know where it is.
| A．all | B．some |
| C．either | D．both |
—Do you know if Linda is willing to take charge of the program?
—________，does it?
| A．It takes no time | B．It counts for nothing |
| C．It doesn't hurt to ask | D．It doesn't make sense |
He ______ a book about his adventures in Tibet. I hope he can find a good publisher when it is finished.
| A．was writing | B．wrote | C．has already written | D．is currently writing |
Tom works in a company and gets paid by ______ hour, totally 5,000 yuan ______ month.
| A．the; the | B．a; the | C．the; a | D．a; a |
No student______ go out of school for snacks during the break without the teacher’s permission.
| A．shall | B．must | C．will | D．may |