The police wondered_____.
| A．whose handbag it is | B．whose handbag it was |
| C．whose handbag is it | D．whose handbag was it |
My father didn’t go to bed ______ he washed his car last night.
| A．until | B．after | C．when | D．since |
We can’t do two things _____.
| A．all the time | B．on time | C．at times | D．at a time |
Jim’s shirt is made _____ silk , and it’s made ______ china.
| A．in, of | B．from, of | C．of , in | D．from , in |
No smoking, please. It’s ____ the rules.
| A．against | B．for | C．on | D．at |
Although we are young, ______ we can still do something to help them.
| A．but | B．/ | C．and | D．however |