— May I go and play with Dick this afternoon, Mum?
No, you can’t go out _______ your work is being done.
| A．before | B．until | C．as | D．the moment |
— What should I wear to attend his wedding party?
— Dress _______ you like.
| A．what | B．however | C．whatever | D．how |
Jack said that he was sure of succeeding in passing the Totel Examination this time, _______, in my opinion, I don’t think so.
| A．what | B．which | C．but | D．therefore |
We must take measures to protect endangered wildlife _______ it is too late.
| A．now that | B．as long as | C．unless | D．before |
Doctor Brown says that _______ what forceful arguments against cigarette harm there are, many people insist on smoking.
| A．though | B．however | C．no matter | D．even if |
The government has taken some measures to solve the shortage of electricity, but it may be some time _______ the situation improves.
| A．since | B．when | C．unless | D．before |
_______ the sun sinks lower, shadow spread ________ the courtyard.
| A．When; through | B．When; across | C．As; through | D．As; across |
They kept trying _____ they must have known it was hopeless.
| A．if | B．because | C．when | D．where |
He was not an actor, who often appeared on stage, _____ a writer, writing stories.
| A．but | B．and | C．then | D．so |
— How long have you been here？
— ______ the end of last month，
| A．In | B．By | C．At | D．Since |
They kept trying _____ they must have known it was hopeless.
| A．if | B．because | C．when | D．where |
—It seems that his health is improving.
—Yes. It is ten years ___ he _____.
| A．that, smoked | B．after, didn’t smoke | C．since, smoked | D．before, smoked |
______I read those words I had no idea what I was going to be and I made more efforts on writing afterwards.
| A．When | B．Unless | C．Until | D．While |
I’m thinking about going to Germany this summer and I need your advice. You’re the best person I know to answer my questions,____you’re German.
| A．after | B．before | C．for | D．unless |
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