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It is 10摄氏度 today.It's cold _ October.A in B with C for D on

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It is 10摄氏度 today.It's cold _ October.A in B with C for D on
I don't think it any good _ about it now.
A to complain
B complain
C complaining
D being complained
C 为嘛不是A?
It _ now pretty late,we took our things and retired to our room.
A is B being C turned D got
选B 求原因
It is common knowledge that metals _ quickly as they get cooler.
A conduct
B contract
C contrast
D expand
选B求原因
A
再问: 答案是C
再答: It _ now pretty late,we took our things and retired to our room. A is B being C turned D got 独立主格,首先它是一个“格”,而不是一个“句子”,在英语中任何一个句子都要有主谓结构,而在这个结构中,没有真正的主语和谓语动词,但又在逻辑上构成主谓或主表关系。 它的基本结构 with sb/sth +动词的不同形式 其中with可以省略 逗号前面完整形式是it is now pretty late,但是两个句子之间没有连词,而后面的句子已经完整,所以前面用独立主格。“动词”在这里是be动词,因为它和逻辑主语——指代时间的it之间(它是)构成主动关系,所以在这里用动词ING形式,改成 (with)it being now pretty late It is common knowledge that metals _ quickly as they get cooler.选B是因为B选项的意思是收缩。A是导电,D为膨胀,所以根据常识选B