1They on working until they get what they think is reasonable.Awill go Bwon't go Cgo Ddon't go怎么判断这里应该用什么时态?2His father the Party since 1980.Ajoined Bhas joined Chas been Dhas been in这里是选B,可是join不是短暂性

They went on working是什么意思 They carried on working though they were very tired They aren't working now.They are on ______. They're working hard on the field改为感叹句 They're working hard on the field改为感叹句 They all are working hard on the farm 改错 It is raining hard.H_______,they go on working. tthough it was late,they kept on working They went on working after ten minutes_____一词 after a rest,they( )( )working on the experiment. It israining hard.H( ),they go on working. Although it was late ,but they went on working.改错 they like working on a farm否定句 After they had a rest,they went on ___A.to work B.working为什么? they are still working on it .这个介词on是干什么的 they went on working though it was dark .的同义句,谁会了,It was dark ____ they went on working . They are working They have a difficult time (to work /working) it on .到底用哪个?请说明理由!