【推荐1】It is necessary ________ healthy in our daily life.

A．keep

B．to keep

C．keeping

D．keeps

【推荐2】I found ________ rather difficult to remember all the star signs in such a short time.

A．this

B．that

C．it

D．its

【推荐3】—I don’t have red shoes for the fashion show.
—My sister has ______ pair. Would you like to try ______ on?

A．one；it

B．one；them

C．two；them

D．a；it

【推荐1】________ is my duty to clean the white board every Monday.

A．One

B．That

C．This

D．It

【推荐2】--- Is this park         you’ve visited recently?
--- Yes, it's the most beautiful one I’ve ever visited before.

A．the one

B．that

C．which

D．the one which

【推荐3】Listening to music can make _________ easy to develop happiness.

A．it

B．one

C．this

D．that

【推荐1】---Excuse me. I want to exchange some money. Is there a bank near here?
---Yes, I know ______near here. Go along the street and you can find it on you right.

A．that

B．it

C．one

D．some

【推荐2】My daughter wants a new bicycle, but I have no time to buy        for her.

A．this one

B．one

C．the one

D．that

【推荐3】The gravity on Mars is only about three eighths of           on the earth.

A．it

B．that

C．one