阅读下面一篇短文，理解大意，然后从各小题的四个选项中选出一个最佳答案，使短文连贯完整。

Perhaps you ride a bicycle to school. Riding a bicycle can be great fun. Do you know how to ride a bicycle ______ ?

Careful boys and girls learn to ride their bicycles well ______ they go out on the road. How can you tell ______ you are a good rider? If you can ride a bicycle in a straight line, you can ride well. If you can’t, you should practice riding ______ safe place. To be safe on a bicycle, you ______ use both hands and both feet. ______ your feet on the pedals and your hands on the handle bars at all times. Do you have a ______ on your bicycle? If so, put your books and packages in it. You know that most bicycles are built for ______ person. It is not safe to carry anyone ______ you.

Keep ______ safe by following safety rules when you ride a bicycle. Watch where you are going at all times.

【小题1】

A．early

B．usually

C．safely

D．quickly

【小题2】

A．as soon as

B．before

C．after

D．until

【小题3】

A．that

B．how

C．what

D．whether

【小题4】

A．in

B．on

C．of

D．to

【小题5】

A．must

B．will

C．may

D．can

【小题6】

A．Keep

B．Leave

C．Stop

D．Go

【小题7】

A．quarter

B．dream

C．basket

D．bridge

【小题8】

A．four

B．three

C．two

D．one

【小题9】

A．to

B．for

C．with

D．by

【小题10】

A．me

B．myself

C．you

D．yourself