Man must keep in mind that it will be years ______ the earth recovers from the d
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Man must keep in mind that it will be years ______ the earth recovers from the damage he makes to it. |
[ ] |
A. when B. before C. since D. until |
答案
B |
举一反三
-Do you know about the accident which happened in the center of the city? -Yes. But it was some time we realized the truth. |
[ ] |
A.before B.when C.since D.until |
We won"t give up ________ we should fail ten times. |
[ ] |
A. even if B. since C. whether D. until |
—Why don"t you do the game with me? —Well, let me try you insist. |
[ ] |
A. once B. since C. unless D. although |
Nobody can achieve anything of real significance _____ he works very hard. |
[ ] |
A. if B. unless C. meanwhile D. as |
Our industry makes use of what farmers throw away as waste. |
[ ] |
A. also B. though C otherwise D. therefore |
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