we often watch him__football on the piayground.A.to play B.plays C.play D.played.
问题描述：
we often watch him__football on the piayground.A.to play B.plays C.play D.played.
答
watch 后面加两种情形：
1.动词ing--表示看到某人正在做,
2.动词原形--表示看到某人做了,
选C