题目内容
You know great changes ________ in our city in the past ten years.
A. have been taken place B. took place
C. have taken place D. were taken place
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16.-Sam,do you know if Alice to my party next week?
-I think she will come if she free.( )
-I think she will come if she free.( )
| A. | comes; is | B. | comes; will | ||
| C. | will come; is | D. | will come; will be |