—It's smoggy these days. That's terrible!
—Yes. I hope to plant trees.______ trees，______ air pollution.
A. The more；the fewer B. The less；the more C. The more；the less
His hobby is ______ singing ______ dancing. It's drawing.
A. either; or B. neither; nor C. both; and
We often hear some students ______ spoken English in the English corner.
A. practiced B. practicing C. practice
We stopped _________, but there was not any sound.
A. to listen B. listens C. listen D. listening
The old man prefers to ______ at home rather than ______ to have a picnic.
A. staying；going B. stay；to going C. stay；go
She told the visitor ______ walk quietly and ______ wake the baby up.
A. to; to B. not to; not to C. to; not to
