六道英语选择题,求详解>ARecently,Dunhuang was hit by the strongest sandstorm this year and the sand and dust weather___for four days.(C) A.was lasted B.had b

六道英语选择题,求详解>ARecently,Dunhuang was hit by the strongest sandstorm this year and the sand and dust weather___for four days.(C) A.was lasted B.had b
六道英语选择题,求详解>A
Recently,Dunhuang was hit by the strongest sandstorm this year and the sand and dust weather___for four days.(C)                                                                                
    A.was lasted  B.had been lasted    C.lasted   D.had lasted

A computer is so useful a machine____we can use everywhere.(C)我选了B                                       A.that    B.which     C.as     D.what

Einstein,for_____life had once been very hard,was successful later in science.(A)“For”表示什么?“For……hard”是一个定语从句吗?“whom”是什么成分?
A.whom    B.whose    C.which   D.his

The river,_____the banks are coverd with trees,is very long.(C)
A.whose  B.which   C.of  which   D.which of 

We can never forget the days ____the two astronauts in spaceship worked together and the daya___we spent rogether.(A) 我选了B
A.when;which    Bwhich;when    C.what;that    D.on which;when

There are no children ____love their parents.(A)我选了B
A.that do not     B.who dose not    C.that   Dwho
括号里面填的是正解.求大神每道详解拯救ORL

六道英语选择题,求详解>ARecently,Dunhuang was hit by the strongest sandstorm this year and the sand and dust weather___for four days.(C) A.was lasted B.had b
1.这应该是过去或现在完成时,首先BD时态不对.last作“持续”意时用主动语态.选C.
2.so... that固定结构.
3.是定语从句,whom是引导词,指代Einstein,在介词for后作从句中的介词的宾语,用whom.意思就是对于爱因斯坦,生活曾经很艰难.for在这里表对象.
4.空后面有the,不考虑A；BCD中只有C可以表示符合语法的从属关系.选C.
5.第一空,从句中work是不及物动词,引导词要作时间状语,必须用when（只有when可作时间状语）；第二空,spend是及物动词,引导词作spend的宾语,是名词性的,要用which.
6.根据句意,从句中一定要否定,排除CD；引导词用that/who都可以,但chidlren是复数,从句中的谓语动词要服从所修饰名词的单复数,这里一定要用复数形式的do not,选A.