听音，选择。
（1）A. 15kg B. 15cm C.50kg
（2）A. clean B. climb C. climbed
（3）A. take B. tail C. took
（4）A. play football B. play the piano C. go by plane
（5）A. wash B. watch C. wear
（6）A. buy B. bike C. nine
（7）A. ski B. skate C. snake
（8）A. present B. parents C. pear
（9）A. I’m fine. B. I’m nine. C. I’m five.
（10）A. He’s sad. B. He’s sick. C. She’s thin.