王老师要求小林、小玉和我做44朵红花，小林和小玉共做27朵，小玉

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问题解答题

王老师要求小林、小玉和我做44朵红花，小林和小玉共做27朵，小玉和我共做29朵，三人各要做红花多少朵？

答案

我：44-27=17（朵）；小林：44-29=15（朵）；小玉：27-15=12（朵）

补全对话，情景问答

补全对话。

A: I'm anxious, because I 1 find my backpack.

B: Really? 2 did you drop it?

A: I think I 3 it during the concert.

B: So it 4 still be in the symphony hall. Go there to have a look. By the way, 5 are you so anxious?

A: Because I have a math test 6 algebra tomorrow.

B: Oh, terrible.

A: It's 7 that it counts 30% 8 the final exam.

B: I'm 9 to hear that.

A: 10 you have any ideas, please call me.

B: OK. I will.

单项选择题

国民经济效益又叫( )。

A．宏观经济效益

B．微观经济效益

C．财务效益

D．社会效益