There is no point _________; it’s too late to mend.
A.arguing B.to argue C.argument D.argued
The urgent situation required that we ________ an immediate decision.
A.should make B.made C.have made D.had been made
It is time that the government _____ measures to protect the valuable heritage.
A.takes B.to take C.take D.took
____________ should we prevent the students from exploring new ideas and technology.
A.In no case B.In case C.In case of D.In this case
No more than 15 scientists __________ the South Pole till now.
A.visited B.had visited C.have visited D.visit
More than one passenger ________ injured in the air crash.
A.were B.is C.are D.was
