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【单选题】
(2013·长春市一模)—Is this Mr. White's office, Mary? —Yes，________.
A.
all right
B.
it doesn't matter
C.
after you
D.
help yourself
题目标签：长春
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】(2013·吉林长春高中毕业班第一次调研)As the immune system weakens, it loses the ability ________ illnesses.
A.
fighting
B.
fought
C.
to fight
D.
to be fought
