1.So nice to see you here.I( )know you( ).A don’t,have come B don’t,will comeC didn’t,already come D didn’t,had come这道题选D,为啥吖~2.How did the accident happen?-You know,it( )difficult to see the road clearly because it

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1.So nice to see you here.I( )know you( ).A don’t,have come B don’t,will comeC didn’t,already come D didn’t,had come这道题选D,为啥吖~2.How did the accident happen?-You know,it( )difficult to see the road clearly because it

1.So nice to see you here.I( )know you( ).A don’t,have come B don’t,will comeC didn’t,already come D didn’t,had come这道题选D,为啥吖~2.How did the accident happen?-You know,it( )difficult to see the road clearly because it
1.So nice to see you here.I( )know you( ).
A don’t,have come B don’t,will come
C didn’t,already come D didn’t,had come
这道题选D,为啥吖~
2.How did the accident happen?-You know,it( )difficult to see the road clearly because it( ).
A was,was raining B is,has rained
C is,is raining D will be,will rain
这道题选的是A,个人感觉...
还有就是想问问重读闭音节如何区分?

1.So nice to see you here.I( )know you( ).A don’t,have come B don’t,will comeC didn’t,already come D didn’t,had come这道题选D,为啥吖~2.How did the accident happen?-You know,it( )difficult to see the road clearly because it
1.过去不知道你所以是didn’t而你来在知道你之前,是过去的过去,所以用过去完成时
2.是A事故发生在过去所以用过去时那时正在下雨所以用过去进行时
重读闭音节三要素:
1. 必须是重读音节;
2. 最后只有一个辅音字母;
3.元音字母发短元音

1.两人正在说话,所以不能说现在不知道,而是刚才(过去)不知道;
2.A 正确
以一个元音字母和一个或几个辅音字母(构成字母组合的除外)结尾的重读音节,就是重读闭音节: shut, shift 等,在重读闭音节中,元音字母发相对的短元音。

didn`t 即是过去不知道,现在知道了,这件事情发生在过去,所以第一空用过去失态,但是你来了在过去之前,所以过去的过去用过去完成失态。
第二题不太清楚