It is reported that the United States uses ____ energy as the whole of Europe.
A. as twice B. twice much C. twice much as D. twice as much
________ you are interested in astronomy, you can read the book.
A. Even if B. Now that C. Unless D. As soon as
_________ parents say and do has a life-long effect on their children.
A. That B. Which C. What D. As
It is reported that two schools, ___________ are being built in my hometown, will be open next year.
A. they both B. which both C. both of them D. both of which
I can’t find the recorder in the room. It ________ by someone.
A. may take B. may have been taken away
C. must have taken away D. needn’t have been taken away
The reason ______ he failed was _______ he was too careless
A. because; because B. why; because C. that; that D. why; that
