My father did not go to New York; the doctor suggested that he （） go there.
A. not to
B. won’t
C. does not
D. not
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The new big factory is reported （） within two years.
A. to have completed
B. to complete
C. having been completed
D. to have been completed
（） finish his homework, he would have come to class.
A. If Mike could
B. Were Mike able to
C. Would Mike be able to
D. If Mike had been able to
My wallet is nowhere to be found. I （） it when I was on the bus.
A. must drop
B. had dropped
C. must have dropped
D. should have dropped
A new technique （） worked out, we set about our project.
A. being
B. to be
C. having
D. having been
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