Chatting on the Internet is not only wasting time, but also doing harm to our health.

[主观题]______ (run) is good for our health．

In fact fresh air is very ( ) to our health.Infactfreshairisvery()toourhealth.A.

The chemicals in the vegetables and fruit are bad__________ our health．（ ）A. fro

.1 Whatever our hobbies, the-|||-Internet can connect us with 17 others a who al

Nowadays it is a well-known fact that second hand smoking does even more harm to

Sleep is necessary for good health. During this time, the body recovers from the

Sleep is necessary for good health. During this time, the body recovers from the

Sleep is necessary for good health. During this time, the body recovers from the

I believe that the breathtaking ideas of science can ________ not only our mind

I believe that the breathtaking ideas of science can ()not only our mind but als