He focused on his work all morning, only____sometimes to drink some tea.A.stopping B.to have stoppedC.having stopped D.stopped为什么,请详细解答,谢谢!

He sat there,with his mind focused on his work中为什么用focused不用focusing He focused on his paper ,() never () the same mistakes.为什么第一空不能用determining? with his eyes focused on中为什么要用focused,而不是用focusing With his attention ____ on the book he was reading,he didn't notice what had happened.A.focuses B.focused C.to focus D.focusingWhich one?why? 可能是虚拟语气 George is going to talk about the geography of his country,but I'd rather he ______ more on its culture.忘了写选项了A.focus B.focused C.would focus D.had focused He focused on his work all morning, only____sometimes to drink some tea.A.stopping B.to have stoppedC.having stopped D.stopped为什么,请详细解答,谢谢! 1.with his attention ( ) on the job ,he did noteven look up when we came in A focused B focusing C to focus D having focused为什么选A 不选B 2.The lady ( ) thirty poor students go to college by the end of last year.A helped B had helped C has he With his attention ___ on the book he was reading ,he didn't notice what had happened.With his attention __ on the book he was reading ,he didn't notice what had happened.A.focuses B.focused C.to focus D.focusing 为什么?请详细说明每个选项 be focused on是focused on的被动语态么? 有几个英语问题 拜托帮忙解答一下1) George is going to talk about the geography of his country ,but I'd rather he ---more on its cultureA .focus B .focused C.would focuse D had focused 为什么选b 而不是c 可不可 be focused on这里的focused是被动语态吗? 请问 stay focused on 这focused 是做形容词吧 After a while,he ____ his attention to the magazineA.pushed B.fixed C.focused D.switched He He focused用中文怎么翻译？ he is on his way He fall on to his 一道高一英语选择题关于concentrate on和focused onWhen I came in,he was____his book.A.concentrating on B.contributed to C.burying on D.focused on求详解,谢蛤a~o(∩_∩)o he wears his emotions on his sleeve