Perhaps it is true that nobody in the world knows exactly how the earth __________.
A.came up | B.came out | C.came to power | D.came into being |
Tomin the library every night over the last three months.
A.works | B.worked |
C.have been working | D.had been working |
—Bob has gone to California.
—Oh, can you tell me when he ?
A.has left | B.left | C.is leaving | D.would leave |
You ____ television. Why not do something more active?
A. always watch | B. are always watching |
C. have always watched | D. have always been watching |
Turn on the television or open a magazine and you ________ advertisements showing happy families.
A.will often see | B.often see |
C.are often seeing | D.have often seen |
The detective, ________ to read a newspaper, glanced at the man ________ next to a woman.
A.pretending; seat | B.pretending; seated | C.pretended; seat | D.pretended; seated |