题目内容
10．-Could you please sweep the floor？-Sorry，I can't． ．（ ）
| A． | I'm free | B． | I have to do my homework | ||
| C． | I'm thinking about it |
分析 --你能扫地吗？
--对不起，我不能．我必须做作业．
解答 答案：B．考查交际用语．句意"--你能扫地吗？--对不起，我不能．我必须做作业．"．A我是空闲的．B我必须做作业．C．我正在考虑它．结合语境"对不起，我不能．"，可知，应该回答"我必须做作业"，选B．其它不符合．
点评 考查交际用语，在日常学习中要从实际情景交际中多练习，掌握一些习惯用语．结合语境，分析选项，选择正确的回答，完成练习．
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