18.He has worked for 19 hours , he needs to stop __________. A working B to work C rest D to rest感觉A和D都可以吧,不知道选啥了,答案是D

He has already worked for() hour. He has worked for a whole day回得来 He said ______for the firm for over ten yearsA.has worked B.had worked he has worked as a teacher for only two weeks .he has little e ____ He has worked in the company for 15 years.H ( ) ,he,doesn~t He works in China,but he___in Africa for 8 years.A.work B.has worked C.had worked D.has been workingA选项写错了，应该是worked. =Mark ____ in China for 10 years and now he teaches Chinese in Britain.A.has worked B.worked Mark ____ in China for 10 years and now he teaches Chinese in Britain.A.has worked B.worked Mark_in China for 10 years and now he teaches Chinese in Britain 请说明理由 回答其他答案忽略A、has worked B、worked C、had worked Mark _________ in China for 10 years and now he teaches Chinese in Britain.A.has worked B.worked C.had worked D.is working he has worked in the factory_____five years ago 1.for 2.at 3.since 4.about He has worked for ____ hourA：a B：an C：the D：/ Li Ping has worked in the company for many years.He is a m____. She bought a book 和 He has worked for 3 years 哪一个表示状态啊 He has worked very hard__he left school.A.for B.befor C.since He works as a teacher now,but he ___ on a farm for 3 years.A.worked B.has worked C.had worked D.woHe works as a teacher now,but he ___ on a farm for 3 years.A.worked B.has worked C.had worked D.wokes答案给的是A,但是为什么不能选C过去完 By next year he ---in New York for five years.A has worked B has been working C works D will have worked He has worked there (s) last year