There are many tall trees ________our classroom building.
| A．in front | B．front of | C．in the front of | D．in front of |
Elephants are _____ bigger than rabbits.
A. much B. little C. very
Which subject is _____ , English, math or Chinese?
A. the most difficult
B. the more difficult
C. most difficult
—How many students are there in your school?
—_______ students, I think.
A. Three thousands
B. Three thousand
C.Three thousands of
The boy stopped ___TV and went to do his homework when his mother came back.
A. watch B. watching C. to watch
Math is _____ difficult for some students _____ learn.
A. too, to B. enough, to C. much, to