题目内容
30. How long do you think it will be _____ we can find a new water source?
A. after B. before C. when D. Since
B
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 |