【非谓语选择题】()sadly,thelittleboyraisedhisheadandhadthetears()downonpurpose.
A.Seentocry;fall
B.Tobeseencrying;falling
C.Seencrying;falling
D.Tobeseentocry;fall
raisedhishead
但是,①Tobe表示的不是将来时么?可这件事情是过去式了啊.②Tobeseencrying和Tobeseentocry有什么区别?这和seesb.doingsth....seesb.todosth.有什么区别?
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