有防水要求的建筑地面工程的( )处严禁渗漏，坡向应正确、无积水。

A．立管

B．套管

C．地漏

D．预埋件

E．钢筋

Hello, boys and girls. My name is Wu Da. It’s Sunday, 小题1:__________we are all in the 小题2:________. Look! Our English teacher is talking with some 小题3:__________. What are we doing? We are having a(n) 小题4:___________ in the classroom. Now, Li Ming is singing an English song.小题5:_________ is playing the piano? Oh, it’s Xia Xue. She has two piano lessons every 小题6:__________, and she can play the piano very 小题7:________. Wang Hao and Hu Min are dancing to the music.

Who is the little boy? That’s Guo Kai, our English teacher’s 小题8:_________. He is only four years old. He is eating a(n) 小题9:__________. Why are we having the party? Today is Steve’s 小题10:___________. His parents are working in another city and can’t have a birthday party for him. So we have it for him. Steve is really happy.