把婴儿和玩具放在远离做饭的地方，距离50厘米以外，给饭锅安()。
A、保护架
B、锅盖
C、气阀
D、螺丝
参考答案：A
听下面一段对话, 回答 小题。
1. Helen and Emma are _____.
A. sisters
B. friends
C. cousins
2. _____ are sister and brother.
A. Dave and Emma
B. Emma and Frank
C. Helen and Dave
----- This term I want to be the top student in my class.
----- _________.
A．Congratulations
B．Never mind
C．Of course
D．Good luck to you
