It is usually warm in my hometown in March, but it be rather cold sometimes.
| A．must | B．would | C．should | D．can |
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 |
Don’t all stand up together! ________, please.
| A．Each at one time | B．One at a time | C．One by one time | D．One for each time |