题目内容
16、Measures have been taken to solve the problem, but it may be some time_________ the situation improves．
A．since B．when C．unless D．before
试题答案
16、D
Measures have been taken to solve the problem, but it may be some time ____ the situation improves.
A. since B. when C. unless D. before
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Measures have been taken to solve the problem, but it may be some time ________ the situation improves．
- A.since
- B.when
- C.before
- D.unless
B. when
C. unless
D. before
B. when
C. unless
D. before
Measures have been taken to solve the problem, but it may be some time ____ the situation improves．
A．since B．when C．unless D．before
查看习题详情和答案>>Measures have been taken to solve the problem, but it may be some time_________ the situation improves．
A．since B．when C．unless D．before
查看习题详情和答案>>Measures have been taken to solve the problem, but it may be some time ________ the situation improves．
A．since
B．when
C．unless
D．before
Measures have been taken to solve the problem, but it may be some time ________ the situation improves．
since
when
before
unless