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英语语法错题求解D1.--- Oh,dear.I forgot the air tickets.--- You ____

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英语语法错题求解
D1.--- Oh,dear.I forgot the air tickets.
--- You ______ something.
A.have left B.are always leaving
C.are leaving D.always left
C2.--- I ______ so busily recently that I ______ no time to help you with your math.
--- That’s OK.I can manage it by myself.
A.have been working; have
B.have worked; had
C.am working; will have
D.had been working; had had
B3.Remember to send me a photo of us next time you ______ to me.
A.are writing B.will write
C.has written D.write
B4.He ______ at the meeting,but his heart attack prevented him.
A.will speak B.is going to speak
C.had to speak D.was going to speak
C5.--- I beg your pardon,but I didn’t quite catch you.
--- Oh,I ______ myself.
A.am talking to B.talked about
C.have talked to D.was talking to
以上选项都是错的,请高手说明原因,结束后会再增加悬赏分的
1.选B,be always doing sth.意思是习惯性,经常性的是这样.典型的例子,China has always being a leader in the GM field.
2.选A吧,have being 表示一种状态,就是现在很忙,没法帮你.
3.选D啊.就是有些短语,比如,the moment ,next time ,接从句时就是动词原形.这个全靠语感.不确定.
4.选D吧.首先prevented 是过去式,B肯定不对.就是作者描述的过去的一件事,说某人打算说话时,心脏病突发.
5.选D吧,这个不确定,评语感.就是刚刚一直在跟自己讲话一样,没让对方听清.
我认为,做选择题最好凭语感,多背诵课文,句子和对话,