I go to school _________ bus every morning．

A．in

B．on

C．at

D．by

Look! There is _________ cat in the tree．

A．a

B．an

C．the

D．/

The population of the world _________ still _________ now．

A．will; grow

B．has; grown

C．is; growing

D．is; grown

Keep off the drugs(毒品), _________ you and your family will be in great danger?

A．and

B．or

C．but

D．so

Jane is one of the students in the class _________ have ever been to China．

A．who

B．whose

C．which

D．whom

“Don't _________ to strangers on your way to and from school”, mother often _________ to me．

A．speak; says

B．speak; tells

C．talk; speaks

D．talk; tells

In many places in China, the old over 90 _________ not only by their family but also by the government．

A．is taking good care

B．are taken good care of

C．is taking good care of

D．are taken good care

There _________ a basketball match between Class One and Class Three this afternoon．

A．is going to be

B．will have

C．are going to be

D．is going to have

He said he would come to see us _________ the next afternoon．

A．sometime

B．some time

C．sometimes

D．some times

Of the two coats, she'd like to choose the _________ one to save money for a book．

A．cheapest

B．cheaper

C．more expensive

D．most expensive