题目内容
If you buy ________ iphone 6 in our store, you can get _____umbrella for free.
A. a; an B. an; a
C. an; an D. the; a
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题目内容
If you buy ________ iphone 6 in our store, you can get _____umbrella for free.
A. a; an B. an; a
C. an; an D. the; a