The missing boys were last seen near the river.——青夏教育精英家教网—

摘要： The missing boys were last seen near the river.

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The missing boys were last seen _____ near the river.

　 A. playing 　 B. to be playing C. play 　 D. to play

The missing boys were last seen _____ near the river.

　 A. playing 　 B. to be playing C. play 　 D. to play

The missing boys were last seen____ near the river.

A. playing B. to be playing C. play D. to play

The missing boys were last seen ___ near the river.

A. playing B. to be playing C.play D. to play

The missing boys were last seen _______ near the river.

A. to play B. to be playing

C. play D. Playing

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