There are many exercise－books for the teacher to go over so that some of her errors i

Although vitamins（)health, you cannot skip the traditional health measures like exerc

ising and having a low-fat diet.

A.are harmful to

B.are useful to

C.are beneficial to

D.are nutrient to

A．There are many visitors there.

B．There are many students there.

C．There are many old streets there.

D．There are many bicycles there.

仍有许多问题没有解决 。

A、There are many problems still remain unsolved.

B、Many problems remain unsolved.

C、Many problems have yet not to be solved.

D、There are many problems not to be solved

A.play

B.great

C.many

A、many/ many

B、many/ a lot o{

C、a lot of/ many

D、much/ much

A.too much

B.much too

C.too many

D.many too