Was it not until you began to work ____ how much time you had wasted?
A. did you realize B. that you realized
C. did you not realize D. that you didn’t realize
_____ some teenagers don’t realize is ____ difficult life can be after they get addicted to drugs.
A. What; how B. That; how C. That; what D. What ; what a
When I got off the crowded bus, I found my pocket _____ and the disk in it with the important documents gone.
A. picked B. stolen C. missing D. lost
The newly discovered star was named _____ a Chinese astronomer ____ honor of his contributions to astronomy.
A. for; in B. after; for C. as; in D. after; in
Hundreds of people gave their lives in _____ of freedom.
A. protection B. guard C. defense D. favor
The Chinese astronauts were so struck by ____ beauty of _____ nature that they took lots of pictures in space.
A. /; / B. /; the C. the; the D. the; /
