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1( )The old man lived in the house _______,but he lived happ

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1( )The old man lived in the house _______,but he lived happily.
A.by themselves B.by himself
C.by herself D.by myself
2( )The young pioneer _______ the blind man _______ the street.
A.help;cross B.helped;cross
C.help;across D.help;to cross
3( )Do you _______ he is right?
A.think B.think about
C.think over D.thinks
4( )She moved back home _______ her sick parents.
A.to take care B.to care of
C.to care of D.care for
5( ).Ling Fang's mother works in another city,and she has to talk with her mother _______ the phone.
A.in B.with
C.of D.on
麻烦说说为什么选那个答案,
1.B,因为是man,所以用himself,所以选B
2.B,此处应用第三人称单数或者过去式,因为选项中没有helps,所以只能用helped,选B
3.A,首先是you,所以不能用第三人称单数thinks,所以排除D,因为句意是:你认为他是正确的吗?所以只要用think:“认为”就可以了,think about:考虑,回想.think over:仔细考虑.
4.,D,此处也可用“to take care of”,句意为:她搬回家来照顾她生病的父母.“care for”=“take care of”:“照顾……”
5.D,“on the phone”固定搭配,“在电话中”