Well, we have been waiting here_____for the guest.
A.long time | B.a long time | C.the long time | D.some long time |
The police say there is a $50,000 _______ for any information that helps them find the killer.
A.income | B.fee | C.bill | D.reward |
Most whales must come up for air after several minutes, _______ a few can stay under water for an hour or more.
A.while | B.or | C.for | D.so |
The numbers that researchers get from the experiments can be _______, just like number puzzles.
A.disappointing | B.inspiring | C.worrying | D.confusing |
_______ the house is empty, memories flood my mind of a time when it was filled with life.
A.Since | B.Unless | C.As if | D.Even though |
By the time a child is five, he _______ hundreds of hours of television.
A.will watch | B.will have watched | C.had watched | D.is watching |