Are you going to buy a camera — Yes. But there’re so many kinds that I can’tdecide ____ to buy.

still remember ______ to the hospital, supported by my class teacher when I was ill at school.

ing to the traffic rules, you _________ wear thesafe belt while you are driving.

It took us about ________ to fly to Hong Kong.

stole my wallet when I was on the bus.–That’s too bad!