You will never gain success________ you are fully devoted to your work.
| A．when | B．because | C．after | D．unless |
----- Your mother won’t agree with you on that, you know, this hairstyle is not suitable for a student.
----- _______? I don’t care what she thinks. Anyway, I am not a child any more.
| A．How come | B．What for |
| C．How so | D．So what |
It was some time _____ Tony realized that he had made a serious mistake on that matter.
| A．since | B．before |
| C．when | D．that |
I don’t think Jim saw me; he ______ into space.
| A．just stared | B．was just staring |
| C．has just stared | D．had just stared |
I advise you to take school more seriously, otherwise you’ll have to go out and work ______.
| A．in a word | B．now and then |
| C．as a result | D．in other words |
----- Isn’t it a surprise that I happened to meet Emily at Doris’ birthday party last weekend?
----- If my memory serves me correctly, you _____ each other for exactly three years.
| A．hadn’t seen | B．haven’t seen |
| C．didn’t see | D．don’t see |