She says that she’ll have to close the shop ________ business improves.
| A．if | B．unless | C．after | D．when |
The young mother couldn’t make herself______ attention to because the baby was concentrating on his toys.
| A．to pay | B．paid |
| C．to be paid | D．pay |
The teacher always tells her students that only if ________ hard _________ achieve success.
| A．do they work, will they |
| B．do they work, they will |
| C．they work, they will |
| D．they work, will they |
Could you drive me to the bookstore at noon if________?
A. it’s convenient of you
B. it’s convenient to you
C you are convenient
D. you will be convenient
Children should be taught at an early age to keep ______even in a difficult situation.
| A．accurate | B．firm |
| C．optimistic | D．enjoyable |
What great trouble we had _________ where his house was.
| A．in finding | B．to find |
| C．find | D．found |