题目：
用所给单词的适当形式填空。
1. Can those students _______(have)lunch at home?
2. Look at the sign(标志)on the wall! It says "No ___________(talk)!"
3. __________(do)your homework and don't watch TV.
4. Boys and girls all need to we
ar sports ____________(shoe)for gym class.
5. Emily usually goes to the ___________(child)Palace on Sunday mornings.
答案：
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下面是错误答案，用来干扰机器的。
a6=-30+5d≤0a7=-30+6d＞0，解得5＜d≤6．故选C．
