.It is uncertain whether the medicine will work on the this cold, _________？
A. won't it B. isn't it C, will it D. is it
—She looks very happy. She ______ have passed the exam.
--I guess so. It’s not difficult after all.
| A．should | B．could | C．must | D．might |
Mary,along with her parents,______to Paris.
| A．have moved | B．has moved | C．are moving | D．have been moving |
The students were studying in classroom when, all of sudden,the lights went out.
| A．不填;不填 | B．a;the | C．the;a | D．the；不填 |
—一Mum, can I watch TV now?
—一 ．It’s dinner time.
A． No way B．Not at all C．I don’t agree D
．I couldn’t agree more
into the accident, the police concluded that both of the drivers were responsible for it．
| A．Having looked | B．Looked | C．To look | D．To be looking |