______ the bikes are too old to ride. I’ll have got to get

Mr. Lee made ______ a rule that we must come to school on time.

A：that

B：this

C：it

D：which

Grandma will appreciate ____ if her elder sister could come back from abroad.

A：this

B：that

C：it

D：one

—I’d like to buy a present for my father’s birthday, ________ at a proper price, but of great use.

A：that    

B：anyone    

C：one   

D：everything

Looking at a situation in a new way will make _______ easier to find new solutions.

A：us

B：this

C：one

D：it

Recycling is one way to protect the environment; reusing is ______.  

A：another

B：the other

C：one another

D：one

To save class time, our teacher has ____ students do half of the exercises in class and complete____ for homework.

A：we; the other half

B：our; other half

C：us; the other half

D：us; others

All we have is 24 precious hours a day and therefore we shall waste ______

A：nothing

B：none

C：neither

D：no one

The two girls are so alike that strangers find________difficult to tell one from the other.

A：it

B：them

C：her

D：that

—Could I smoke here?—I’d prefer _______if you don’t smoke in front of the children.

A：that

B：this

C：it

D：you

The doctor thought ___ would be good for you to have a holiday.

A：this

B：that

C：one

D：it