1个选择,3个句型转换.

1个选择,3个句型转换.
1.The big bag is used__sleeping__the boy.
A.to;by B.for;by C.to;for D.to;to
2.The students swept the floor of the classroom after school.(改被动语态）
The floor of the classroom __ __after school by the students.
3.The girls are wearing beautiful clothes.(变同义句）
The girls __ __ in beautiful clothes.
4.Jim has never come to school late.(变反义疑问句）
Jim has never come to school late,__ __?

1.B (不应选C,因为这是物作主语.）
2.was swept
3.are dressing
4.has he?