题目内容
－Su Hai and Su Yang look the same．
－Don't you know they are ________ sisters?
[ ]
A．twin
B．twins'
C．twins
D．twin's
答案：A
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题目内容
－Su Hai and Su Yang look the same．
－Don't you know they are ________ sisters?
A．twin
B．twins'
C．twins
D．twin's