题目内容
10. — How old are you, madam?
— If you _______ know, I’m twice my son’s age.
| A.can | B.must | C.may | D.Should |
B
解析
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题目内容
10. — How old are you, madam?
— If you _______ know, I’m twice my son’s age.
| A.can | B.must | C.may | D.Should |
B
解析