【题目】—Is Mary at home? ( )
— ________.
A.Yes, she is B.No, she doesn't C.Yes, she does
【答案】A
【解析】
疑问句Is Mary. . . ? 的肯定回答:Yes, she is.,否定回答:No, she isn't.

【题目】—Is Mary at home? ( )
— ________.
A.Yes, she is B.No, she doesn't C.Yes, she does
【答案】A
【解析】
疑问句Is Mary. . . ? 的肯定回答:Yes, she is.,否定回答:No, she isn't.