Sometimes he found _______very hard to fall asleep at night, so he went to see the doctor．
| A．him | B．this | C．that | D．it |
Sarah hopes to become a friend of _____ shares her interest.
| A．no matter who | B．no matter whom |
| C．whoever | D．whomever |
_____, I think, and you will settle the problem.
| A．So long as you make your effort |
| B．If you make your effort |
| C．Making great effort |
| D．A bit more effort |
We can never expect _____ bluer sky unless we create _____ less polluted world.
| A．the; the | B．the; a |
| C．a ; the | D．a; a |
--- My husband and I really liked that car, but we didn’t have enough money at that time.
--- Or you _____ it. What a pity!
| A．bought | B．had bought |
| C．would buy | D．would have bought |
--- Do you mind if I leave my car here for a minute?
--- ______.
A. Great! I love cars
B. Of course not. It’s not allowed here
B. No, you can’t
D. I’d rather you didn’t, actually