No one in the factory but the brothers _____ that our factory will be closed because of the financial problem.
A. knows B. know C. have known D. knew
The girl left home after quarreling with her parents, _____ them quite worried.
A. making B. made C. to make D. makes
Not until ___to do my homework ____ how much time I had wasted playing computer games.
A. I began; I realized
B. I began; did I realize
C. did I begin; I realized
D. did I begin; did I realize
He has made another wonderful discovery, _____ I think is of great importance to science.
A. which B. what C. when D. that
－What’s that terrible noise?
－The neighbours _____ the lawn.
A. mow B. are mowing C. have mowed D. will mow
The man was determined to deal with the problem on his own and turned down ______ of help.
A. invitations B. offers C. applications D. comments
