完形填空题。
Mary is a girl. She is __1.__ England. But she lives in China. She has two friends, Linlin and Yanyan. Last Sunday Mary ___2._____ for a picnic with Linlin and Yanyan. They went ____3.____ in the lake. They rode bike and ____4._____ kites. Then they had _____5._____food. They had a good time. It was late. They began ____6.____ home. Yanyan rode her bike fast. She fell ____7._____her bike and hurt one of his ____8___. It was dangerous ___9.____fast. The doctor told her to ____10.___ more careful next time.
(   ) 1. A. in B. from C. at
(   ) 2. A. go B. goes C. went
(   ) 3. A. swimming    B. swim C. to swim
(   ) 4. A. fly B. flied C. flew
(   ) 5. A. many B. lots of C. a lot
(   ) 6. A. to go B. go C. going
(   ) 7. A. off B. down C. in
(   ) 8. A. foot B. arms C. leg
(   ) 9. A. ride B. to ride C. riding
(   ) 10. A. be B. is C. was