I don’t know .
A. what the population of Tianjin is
B. what is the population of Tianjin
C. how much the population in Tianjin is
D. how much is the population in Tianjin
“Mr. Zhu, you’d better too much meat . You’re already over weight .” said the doctor .
A. not to eat B. to eat C. eat D. not eat
Computers in everyday life in this country before long .
A. will be used B. is used C. will use D. was used
—I have bought a new watch .
—Where and when you it ?
A. did ; buy B. do ; buy C. have ; bought D. will ; buy
Jack，please help me the picture on the wall.
A. put off B. put up C. put into D. put on
As we all know ,Columbus America and Edison light bulbs.
A. discovered ; invented B. invented ; discovered
C. discovered ; discovered D. invented ; invented
