Einstein’s Theory of Relativity was so __________that few people could understand it at that time.
A.controversial | B.religious | C.abstract | D.contradictory |
She has set a new record, that is, the sales of her latest book ___50 million.
A.have reached | B.has reached | C.are reaching | D.had reached |
The first use of atomic weapons was in 1945, and their power ____increased enormously ever since.
A.is | B.was | C.has been | D.had been. |
–Have you heard the latest news?
-No, what ____?
A.is it | B.is there | C.are they | D.are those |
The father as well as his three children ___skating on the frozen river every Sunday afternoon in winter.
A.is going | B.go | C.goes | D.are going |
Not Tom, but I ___to blame for the failure.
A.am | B.are | C.is | D.be |