he is busy writing something on a pice of paper.

he is busy writing something on a pice of paper. 用英语解释he is busy writing a job application改为同义句 He is busy writing an ______ for the magazine these days. He is very busy ___his papers ,He is far too busy to callers.前一个是用writing 还是 write?求详解 .look at tom's c__ how busy he is he is writing () his notebook. Mr Smith is busy now.He is writing a book同意句转换Mr Smith is _______ ________ a book now He is _____ busy today -He is supposed _____ writing the report.-But he was really busy.A.finishingB.to finishC.to have finishedD.having finished he says he is busy 这里的 says 为什么加 s he is very busy(writing)his papers.he is far too busy（to receive）callersbusy后面只能加doing的形式吗?那后面的空为什么是to do的形式呢?求讲解 that he has not come is ___he is busy writing the papersA that B why C because Dthe reason 为什么选C 不选A 求回答 where is mike going?---_____.a.he's doing his homeworkb.he's writing a letterc.he's going to the libraryd.he's talking there Mr.Black is too busy.He f ____ it is his daughter's birthday today. The head teacher's ______ problem is that he is _______ busy. He is writing a letter被动语态 He is writing a letter____the corner. He is writing aletter翻译,急