当你介绍一个人时,通常会说:A.Good night.B.This is…C.I’m fine.
Please waitthe green light. A. at B. in C. for
play with fire . A. Do B. Don’t C. Please
do you usually go to the park ? A. How B. Where C. When
Theytennis. A. are good B. is good at C. are good at
He is good running . A. goes B. at C. to