题目内容
从所给的四个选项中选择最佳答案
The missing boys were last seen ________ near the river.
[
]A
.playing B.to be playing C.play D.to play
答案:A
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题目内容
从所给的四个选项中选择最佳答案
The missing boys were last seen ________ near the river.
[
]A
.playing B.to be playing C.play D.to play