2. 根据所给情境,选择合适的选项。
( ) (1) 当你想问别人几岁时,可以说：
A. How old are you? B. Can I help you?
( ) (2) 当你走进一家商店,售货员会对你说：
A. Can I help you? B. You're welcome.
( ) (3) 当你想给你的朋友买一个蛋糕,可以对售货员说：
A. I want a cake for my brother. B. I want a cake for my friend.
( ) (4) 当别人祝你生日快乐时,你应该回答：
A. Thank you! B. OK.
( ) (5) 当你想表达这个玩具很可爱时,可以说：
A. Cool! B. How lovely!

(1) A
(2) A
(3) B
(4) A
(5) B

模仿范例,填入所缺单词。
范例：Two and (加) two is four.
1. Four and ______ is ten.
2. Three and ______ is eight.
3. Nine minus (减去) ______ is seven.
4. Eight minus five is ______.

Six
five
two
three