15.You won't get better if you don't ____________ smoking.

15.You won't get better if you don't ____________ smoking.
A.give upB.give awayC.give out
16.Not until most of the people had left the airport _________ his sister was there.
A.that he saw
B.had he seen
C.did he see
D.that he had seen
17.They are _________ students that they all performed well in the nationwide examinations.
A.so diligent
B.such diligent
C.so much diligent
D.such very diligent
18.She paid the builder _________ the gate.
A.to repair
B.repair
C.repairing
D.repaired
19.We __________ every day when we were children.
A.used to swim
B.used to swimming
C.use to swim
D.use to swimming
20.The work ____ by the time you get there.
A.will have been done
B.was done
C.had been done
D.has done
21.It is assumed that students at an intermediate level will have a good ______ of the basic structures and vocabulary of English.
A.command
B.commanding
C.to command
D.commanded
22.More and more people in China now __________ to work regularly.
A.drive
B.drives
C.drove
D.have driven
23.We ____________ the bathroom and plan _____________ the bedroom this year.
A.painted…to paint
B.is painting… painting
C.paint… to paint
D.have painted…to paint
24.I regret _______ that I'm unable to help you.
A.saying
B.to say
C.say
D.said
25.They all ____________ the job.
A.asked after
B.asked for
C.asked to
D.asked with

A give up doing sth,放弃做某事
Cnot until 放句首,主句要倒装,从句是过去完成时,主句要用一般过去时
B因搭配students,即名词,所以应用such
A固定搭配pay sb.to do sth
A固定搭配used to do sth,过去常常做某事
Aby the time 要用完成时,从句用一般现在时,则主句应用将来时,而且作业是被做
A固定搭配 have a command of sth
Apeople,谓语用复数
D完成和计划,即完成时和不定式
Bregret to say,遗憾要做某事,regret doing是后悔做,regret to say,遗憾的说
B ask for the job,找工作