He was busy writing the exam paper, only ___once in a while to check the time.
A. to stop B. stopping
C. to have stopped D. having stopped
After the earthquake, people _________ rebuilding their homes.
A. set off B. set about C. set out D. set up
___________by her classmates for fatness, she decided to go on a diet so as to lose weight.
A. To be annoyed B. To have been annoyed
C. Having been annoyed D. Having annoyed
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
The flu is believed _____ by viruses that like to reproduce in the cells inside the human nose and throat.
A. causing B. being caused
C. be have caused D. to be caused
Luck ________ those ________ are prepared for it.
A. concerns, who B. favors, who
C. cares, that D. finds, that
