问题描述：
按单词的适当形式填空!Where " " (be) the children?Look,they" "(be) over there.What " "they" "t
Where " " (be) the children?Look,they" "(be) over there.What " "they" "they " "(do)there?They“?” (listen) to the CDs.
Where " " (be) the children?Look,they" "(be) over there.What " "they" "they " "(do)there?They“?” (listen) to the CDs.
问题解答：
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