I think that he must be looking up the information in the library, ______?
| A．isn’t he | B．don’t I | C．do you | D．must he |
My plane at 8:30 am, so Ihome at 8:00 tomorrow morning.
| A．leaves; leave | B．leaves; am leaving | C．is leaving; am leaving | D．is leaving; leave |
It is the third time that she ______ the role of Juliet ever since she graduated from university.
| A．has played | B．had played | C．is playing | D．played |
Bamboo, which is a common plant in the south, is used ______ in buildings, food, furniture and so on. It is used to make clothes as well.
| A．other than | B．more than | C．rather than | D．less than |
________ by keeping down costs will Power Data hold its advantage over other companies.
| A．Only | B．Just | C．Still | D．Yet |
Scientists say it may be five or six years _______ it is possible to test this medicine on human patients.
| A．since | B．after | C．before | D．when |