are the birds doing? They are singing in a tree.A. WhoB. WhatC. How D. Where——青夏教育精英家教网——

题目内容

_____ are the birds doing? They are singing in a tree.

A. Who
B. What
C. How
D. Where

试题答案

B

相关题目

_____ are the birds doing? They are singing in a tree.

A. Who
B. What
C. How
D. Where

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