下列属于我国基本国策的是 [ ]
①计划生育
②坚持四项基本原则
③对外开放
④坚持民族团结
A．①③
B．②④
C．②③
D．①②③
答案：A
— _____ I didn't hear you clearly. It's too noisy here.
— I was saying that the party was great. [ ]
A. Repeat.
B. Once again.
C. Sorry?
D. So what?
the letter from her parents, tears kept coming to her eyes. [ ]
A. To read
B. While reading
C. While she was reading
D. Reading
