You must work hard,____ you will not learn English well.
| A．if | B．whether | C．otherwise | D．unless |
To save class time, our teacher has ________ students do half of the exercise in class and complete the other half for homework. .
| A．us | B．we | C．our | D．ours |
Little joy can equal ________ of a surprising ending when you read stories.
| A．that | B．those | C．any | D． some |
Recently CCTV Station has taken great pains to make a program that reviews the important _____of 2006.
| A．affairs | B．events | C．matters | D．things |
Tom took the police to the spot ____ the accident happened.
| A．which | B．that | C．where | D．when |
You think you’re poor, but look at people in really poor countries—it’s all ____.
| A．relative | B．simple | C．similar | D．related |