Children who are over-protected by their parents may become ________.
A.hurt | B.spoiled | C.damaged | D.harmed |
By the time he arrived in Beijing, we _______ there for two days.
A.will have stayed | B.stay | C.have been staying | D.had stayed |
The professor could hardly find sufficient grounds________ his arguments in favor of the new theory.
A.on which to base | B.which to base on | C.to base on | D.to be based on |
Along with the email was my brother’s promise ______ I came first in the competition, he would buy me an MP4.
A.what | B.that | C.that if | D.whether |
"We can’t go out in this weather," said Bob, ________ out of the window.
A.looking | B.to look | C.looked | D.having looked |
Scientists are convinced _______the positive effect of laughter ______ physical and mental health.
A.of ; at | B.by ; in | C.of ; on | D.on ; at |