--- Be careful! Don’t forget you are on a ladder.
--- But you are holding it for me, nothing .
| A．worry about | B．to worry about | C．is worried about | D．worrying about |
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 |
--Shall I open the window?
--I’d rather _________.
| A．you had better not | B．you don’t |
| C．you didn't | D．you shouldn’t |