早孕时最早及最重要的症状是：
A．停经
B．早孕反应
C．尿频
D．腹痛
E． * * 胀痛
参考答案：A
选词填空。
A: May I __________ (help, helping) you?
B: Yes! I want to buy a __________ (dress, dresses). Where are the __________ (dress, dresses)?
A: I'll __________ (show, shows) you. This __________ (way, dress), please.
Here they __________ (is, are)!
B: Thanks!
