A. hundreds of，hundreds ofB. hundred of，hundreds of

C. hundreds of，hundred ofD. hundred of，hundred of

【题目】In the past, most children had no chance to go to school. , they had to work and make money to support their families.
A.What's more
B.Because of
C.So that
D.In order to

---Yes. We can’t____her legs were badly hurt two years ago.

A.seeB.imagineC.understandD.know

A. becauseB. because ofC. asD. like

A.look forB.find outC.search forD.turn to

【题目】I think the room is too small for us ________.
A.to live
B.living in
C.to live in
D.live in

A. asB. forC. toD. with

A. astronaut.B. computer programmer

C. engineerD. reporter

【题目】David didn't give up _________ he had failed in the experiment four times.
A.if
B.so
C.though
D.and

【题目】She was not _______, but she is ________ to go to school.
A.feel well; well enough
B.feeling well; well enough
C.feel gook; good enough
D.feeling good; good enough