题目内容
-How long do you think it will be ________ China sends a manned spaceship to the moon?
-Perhaps two or three years.
[ ]
A.
when
B.
until
C.
that
D.
before
答案:D
解析:
解析:
|
句意:——你认为中国还需多久就能把载人飞船送上月球? ——可能要二、三年时间。 It was/will be+一段时间+before…句式中的before表“……才”或“……就”。 |
练习册系列答案
相关题目
Students are always interested in finding out ________ they can to with a new teacher.
|
A.how far |
B.how soon |
C.how often |
D.how long |
----How long can I keep the book?
----A week.You _____to return it by Monday.
|
A.expect |
B.will expect |
C.are expected |
D.will be expected |