She knows a lot about the film. She must have seen it before, ______ ?
must she B. mustn’t she C. has she D. hasn’t she
------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 |
_______ with her graduation paper, Mary has no time to do a part—time job.
| A．Having been occupying | B．Having occupied |
| C．To be occupied | D．Being occupied |
------ Henry doesn’t seem like the same person.
------ ________ so much in the war has made him more thoughtful.
| A．For him to see | B．His seeing |
| C．Having seen | D．To have seen |
Kate is said ________ abroad, but I don’t know what country he studied in.
| A．to have studied | B．to study |
| C．to be studying | D．to have been studying |
The driver began to speed up to ______ for the hour he’d lost in the traffic jams.
| A．keep up | B．make up | C．take up | D．catch up |