He doesn’t have the habit of planning his travel expense, so he won’t know what
题型：不详难度：来源：
He doesn’t have the habit of planning his travel expense, so he won’t know what to do _______ the money runs out.| A．once | B．before | C．unless | D．though |
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答案
| A |
解析
| 连词辨析。A.一旦 B.在……之前 C. 除非 D. 尽管。句意：他没有计算旅行费用的习惯，因此他不知道一旦钱用完了该怎么办。故选A。 |
举一反三
— Did he realize the serious situation immediately?
— No. It was quite a long time ________ he really realized it.| A．now that | B．when | C．ever since | D．before |
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__________ attracts movie goers in the film Avatar is its vivid three-dimension effect (三维效果) , grand war scenes and touching love story. |
.I was about to leave_________I saw him_______ towards me, with a bag in hand.| A．while; running | B．when; running | C．as; ran | D．when; to run |
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The scientist and his achievements________you told me about are admired by us all. | A．which | B．that | C．who | D．whose |
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．The theory is true _______ the hotter a body is, the more energy it gives off.| A．that | B．when | C． which | D．what |
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