摘要：15．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
网址：http://m.1010jiajiao.com/timu3_id_3180438[举报]
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.before
- D.unless
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>>
B. when
C. unless
D. before