he is at his officeat可以用in替代吗

David has( )much work to do that he is staying late at his officeA such B so C very D enough he is green at his Tom,where is your father I'm not sure .He _____ in his officeA is B may be C maybe D may He is green at his job He is looking ---(angry)at his son .He looks----- He'll succeed because .He is always at his books he will succeed becauce he is always at his bookshe will succeed becauce he is always at his books.i He is nine.( ) name is Jack.Look at (He is nine.( ) name is Jack.Look at ( ).He is tall.A.He heB.His hisC.His him He is ——(good)at math than his brother he is looking ___(angry)at his students now. he is at his officeat可以用in替代吗 英语翻译He ______ ______ at school ,so he is good at all his lesons. he has to look after his mother at home,because his mother is {i } in bed He isn't good at his lessons,so his father is very a______ with him . He is very good at sports; but he is ____ in basketball.a、at the bestb、at his bestc、in his bestd、made the best of his best subject at school is physics 改为 he ( ) ( ) in physics at school He is not good at his syudies at school.的意思 He is at the first driven back at his appearance.是什么意思?