为避免营养不良和营养过剩,我国营养学家提倡城乡居民每天均衡地吃几类食物? [ ]
A.四类
B.五类
C.六类
D.七类
B
根据句意及括号内所给单词提示,完成句子。
1. Don't be (worry) about it.
2. —What are they over there?
—They are ____(mouse).
3. —What can I do for you, madam?
—I want three ____(kilo) of sugar.
4. I need ____(buy) some books.
5. —How many ____(bottle) do you want?
—Four.
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