—Linda, time for bed. —______, Mom![ ] A_爱下问搜题

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问题选择题

— Linda, time for bed.

— ______, Mom![ ]

A. Good night

B. Good evening

C. Thanks

D. Good-bye

答案

答案：A

填空题

用括号内所给单词的适当形式填空。

1. When I got home, my mother _____ (cook) lunch.

2. I came here _____ (help) the old grandma.

3. I _____ (see) the film three times so far.

4. Let me _____ (tell) you an interesting story.

5. There are some _____ (tomato) on the table.

单项选择题

生产要素的价格等于（）。

A.要素的边际成本

B.边际产品收益

C.边际产值

D.依具体情况而定