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

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

题型:不详难度:来源:
We won"t know how the plan works till we have tried it ________.
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
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