日日人人_亚洲美女在线视频_av手机在线播放_国产大片aaa_欧美中文日韩_午夜理伦三级

A. if B. when C. that D. where

【題目】教學樓前有許多學生。
There are students in front of the classroom building．

——_____________.

A. Yes, I do B. No, I don’t

C. Yes, I don’t D. I like dumplings

A.helped B.are helping

C.were helping D.help

—I________the Internet at home．

A．am surfing B．surfed

C．will surf D．was surfing

——___________.

A. She is a teacher B. She is kind to us

C. She is in the library D. I don’t know

A．wash B．washed

C．am washing D．was washing