tom is six and he is __his sister Mary.How old is Mary?--threeA.twice as older as b.two years older thanc.three years yonger than d.as old as选A的原因

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tom is six and he is __his sister Mary.How old is Mary?--threeA.twice as older as b.two years older thanc.three years yonger than d.as old as选A的原因

tom is six and he is __his sister Mary.How old is Mary?--threeA.twice as older as b.two years older thanc.three years yonger than d.as old as选A的原因
tom is six and he is __his sister Mary.How old is Mary?--three
A.twice as older as
b.two years older than
c.three years yonger than
d.as old as
选A的原因

tom is six and he is __his sister Mary.How old is Mary?--threeA.twice as older as b.two years older thanc.three years yonger than d.as old as选A的原因
选A语法不对,应该是:twice as old as,意思:岁数是Mary的两倍.可能是打错字.
B的意思是:比Mary大两岁.
C的意思是:比Mary小三岁.
D的意思是:和Mary一样大.

TOM六岁,显然Mary3岁,B大两岁,C年轻三岁,D一样大,只有A是他的两倍,2倍的mary是六倍的tom,加油啊……

应该是twice as old as吧?倍数词必然放前面,然后就看句意,bcd三个选项算下来都说不是3岁了~

A +be +倍数+as +adj+as +B
A也是错地 older----old

A twice as old as是...的两倍,符合题意

A (他妹妹年龄)的两倍
B比(他妹妹年龄)大2岁
C比(他妹妹年龄)小3岁
D和(他妹妹年龄)一样大,
你说还能选哪个?