题目内容
| 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 |
试题答案
C
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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 |
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
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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.if
- B.before
- C.when
- D.until
Experts are trying to work out a plan to deal with the problems caused by global warming________
it is too late.
it is too late.
[ ]
A. when
B. if
C. before
D. until
查看习题详情和答案>>
B. if
C. before
D. until
Experts are trying to work out a plan to deal with the problems caused by global warming________
it is too late.
it is too late.
[ ]
A .when
B．if
C．before
D．until
查看习题详情和答案>>
B．if
C．before
D．until