Is this research center _________ you met some foreign guests last week?
| A．that | B．where | C．which | D．in which |
—— Oh, it’s raining hard outside. Mum, do you think the milkman will come?
—— Of course. He will come on time _____it rains.
| A．in case | B．even though | C．as long as | D．ever since |
Though the book is a little expensive, it is _____.
| A．very worth buying | B．well worth to be bought |
| C．well worth buying | D．very worthy buying |
It is required that students _____mobile phones at school, so seldom _____them using one.
| A．don’t use; will you see | B．should not use; you will see |
| C．not use; will you see | D．can’t use; will you see |
——Tom is never late for work. Why is he absent today?
—— Something _____to him.
| A．must have happened | B．can have happened |
| C．must happen | D．can happen |
—— Could you tell me his telephone number?
—— _____the phone book and find it out yourself.
| A．Look up | B．Search for | C．Refer to | D．Go through |