Tom has been busy with his work ________ Monday.A.from B.since C.for

Tom has been busy with his work ________ Monday.A.from B.since C.for 过去分词beenHe has been busy since last week为什么不直接用busy的过去分词,而是用been Mr.Zhang has been busy __his office work on weekdays this mouth.A.with B.to C.for D.inOh,little Tom seemed to be sad.I guess something ___(happen)to him. all the students except tom has been abroad改错 Tom has been on the island since two years.(改错) it is 3 years since Tom has been abroad tom didnt smoke has been two years有语法错误吗 Tom has been a________(成员) of the volleyball team Tom ________France .He _____Paris for three weeks.a.has been to :has been tob.has gone to :has been inc.has been to:has been ind..has gone to; has been to并说明原因 I have been busy yesterday afternoon为什么要用have been busy而不用have busy主要想问的是什么时候现在完成时里动词前要用been,也就是have been ...例如还有 ：She has been sick since last month. 1.Tom has got a letter from his sister recently.（改为同义句）Tom __________ __________ __________ his sister recently.2.顺便问一下,他最近忙吗?___________________,has he been busy recently?3.我和父母将在那儿呆一个星期, Tom got sick last May and has been in bed since then.为什么has been 而不是had been the room has been cleaned by tom 对tom提问____ ____the room____ cleaned ____ 请问jack has been busy _ his report.这句话中应该填什么 Tom’s grandfather （has been dead） for five years为什么不是has been died? 告诉我原因谢谢. 这句话有几个助动词The work has been done by tom .has 和 been哪个是助动词 为啥 Tom has been in China for three years.(改为同义句)1.Tom has been in China ( ) three years( ).2.Three year ( ) ( ) ( ) Tom cane to China.3.Tom ( ) ( ) China three years ( ).4.It is ( ) ( ) ( ) Tom came to China. Tom has been in China for three years.(改为同义句)1.Tom has been in China ( ) three years( ).2.Three year ( ) ( ) ( ) Tom cane to China.3.Tom ( ) ( ) China three years ( ).4.It is ( ) ( ) ( ) Tom came to China.