Experts are trying to work out a plan to deal with the problems caused by global
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Experts are trying to work out a plan to deal with the problems caused by global warming________ it is too late. |
[ ] |
A. when B. if C. before D. until |
答案
C |
举一反三
_____ he can pass the entrance examination is quite uncertain. |
[ ] |
A. If B. Whether C. That D. What |
_____ days went by, he didn"t succeed in anything he had planned. |
[ ] |
A. With B. When C. As D. While |
It was ____ the ambulance came ____ to the hospital. |
[ ] |
A. until; that he got sent B. until; did he get sent C. not until; that the boy was sent D. not until; did he got sent |
Whoever leaves the room last must make sure________all the windows are shut. |
[ ] |
A.that if B.whether C.if D.that |
-You won"t go to Kathy"s wedding party,will you? -Yes,________invited.
|
[ ] |
A.even if B.if C.unless D.as |
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