题目内容
—Look! My father is sleeping under umbrella on the beach.
—Dear, that’s big beach umbrella.
A.a; a B.an; an
C.an; a D.a; an
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题目内容
—Look! My father is sleeping under umbrella on the beach.
—Dear, that’s big beach umbrella.
A.a; a B.an; an
C.an; a D.a; an