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
The little boy, who had _____ gift for music from an early age, is considered to be _____ future Beethoven by his teachers.
A. the; / B. /; a C. a; a D. the; /
－ I need to write an ad to rent out our place now.
－______? Michael is looking for a place.
A. Why not B. What for C. Why bother D. So what
