We won"t know how the plan works till we have tried it ________.

题型：不详难度：来源：

答案

out　

解析

考查动词短语。句意：我们通过实施这个计划才知道它如何。try out“测试；试验”。

举一反三

—Did you see Tom at the party?
—No, he _______ by the time I got there.
A. left
B. was leaving
C. had left
D. have left

题型：浙江省月考题难度：| 查看答案

Alice _______ any French before she visited France? [ ]
A. Has…studied
B. Had…studied
C. did…studied
D. would…studied

题型：四川省月考题难度：| 查看答案

下列各句中的A、B、C、D中有一处错误，请指出每句中的错误，并在不改变句子意思的前提下，将正确答案写在题后的横线上。(     )1. By the end of last week, he has read 8 story books.
            A              B                     C                       D
(     )2. Must I finish the work at the moment? No, you mustn"t.
              A                             B         C                        D
(     )3. Besides his scientific research, he devoted himself to work for the human rights.
               A                              B       C                               D
(     )4. You have to tell your parents before you go out, haven"t you?
                    A               B                  C                         D
(     )5. Why don"t read the film review first?
                      A     B                  C      D

题型：同步题难度：| 查看答案

When I got to the cinema, the film _____ for ten minutes. [ ]
A. began
B. had began
C. had been on
D. be on

题型：期末题难度：| 查看答案

By the time I got outside, the bus _____ already.

[ ]

A. had left
B. have left
C. left
D. leaves

题型：期末题难度：| 查看答案