He went to the office to a voluntary job.（2012～2013 .河南安阳第三实验中学期中）
| A．apply to |
| B．apply for |
| C．apply himself to |
| D．be applied for |
We'd better hurry ______ it is getting dark.
| A．and | B．but | C．as | D．unless |
I didn' t manage to do it _____ you had explained how.
| A．until | B．unless | C．when | D．before |
_____ he comes, we won't be able to go.
| A．Without | B．Unless | C．Except | D．Even |
I hurried _____ I wouldn't be late for class.
| A．since | B．so that | C．as if | D．unless |
_____ I catch a cold, I have pain in my back.
| A．Every time | B．Though | C．Even | D．Where |