Mr. Wu is good ____ math. He teaches _____ math well.
| A．for; our | B．at; our | C．with ;our | D．at ;us |
— What kind of movies do you like?
— I like the movies ____ are about Chinese history.
| A．who | B．whom | C．whose | D．that |
We should never ____till tomorrow what we can do today.
| A．put on | B．put off | C．give up | D．give back |
David doesn’t give up _______ he has failed in the experiment four times.
| A．if | B．while | C．though | D．since |
Sally used to be ______, but now she enjoys meeting and talking to new friends.
| A．active | B．shy | C．honest | D．naughty |
— I could look after ____ when I was five.— Really? I can’t believe it.
| A．myself | B．herself | C．himself | D．yourself |