Scientists say it may be five or ten years ______ it is possible to test this me

题型：浙江省月考题难度：来源：

Scientists say it may be five or ten years ______ it is possible to test this medicine on human patients.

[ ]

A. since
B. when
C. after
D. before

答案

举一反三

Do you know how long it is ______we last went to the theatre?

[ ]

A. since
B. before
C. when
D. that

题型：山东省月考题难度：| 查看答案

Doing your homework is a sure way to improve your test scores, and this is especially true ____ it comes
to classroom tests.

[ ]

A. since
B. before
C. after
D. when

题型：天津月考题难度：| 查看答案

I"m sorry you"ve been waiting so long, but it"ll still be some time _____ Brian gets back.

[ ]

A. before
B. since
C. till
D. after

题型：同步题难度：| 查看答案

Mount Wuyi is such an attractive place of interest ____ everyone likes to visit.

[ ]

A. which
B. as
C. that
D. so

题型：同步题难度：| 查看答案

His plan was such a good one _____ we all agreed to accept it.

[ ]

A. so
B. and
C. that
D. as

题型：同步题难度：| 查看答案