I have lost one of my gloves. I ________ it somewhere.[ ]A. must drop

题型：同步题难度：来源：

I have lost one of my gloves. I ________ it somewhere.[       ]
A. must drop
B. must have dropped
C. must be dropping
D. must have been dropped

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举一反三

— Have you ever been to Xiushui No.1 High School?
— No. It is the first time that I ______ to Xiushui.  [     ]
A. come
B. have come
C. am coming
D. came

题型：安徽省期中题难度：| 查看答案

— Have you ever been here before?
— This is the second time I________to the Great Wall.[      ]
A. comes
B. have been
C. came
D. had come

题型：同步题难度：| 查看答案

As a result of the use of the new technology，the production of this product________50 percent.[     ]
A．has risen to
B．has been raised to
C．has risen by
D．has been risen by

题型：同步题难度：| 查看答案

— Have you seen the film before?
— No.This is the first time that I________ it.[     ]
A. see
B. saw
C. have seen
D. had seen

题型：陕西省同步题难度：| 查看答案

It"s the second time that I________in America.[      ]
A. have been
B. had been
C. am
D. was

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