题目内容
— Do you have to take care of your mother at home ? — Yes , I ____ .
A . do B . have to C . have D . shall
B
解析:
回答情态动词 have to 的一般问句时肯定用 have to 或 must , 否定用 don''t have to 或 needn''t。
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题目内容
— Do you have to take care of your mother at home ? — Yes , I ____ .
A . do B . have to C . have D . shall
B
回答情态动词 have to 的一般问句时肯定用 have to 或 must , 否定用 don''t have to 或 needn''t。
7．从该天气系统所处半球和气压分布看，它属( )