问题
选择题
His father and mother ____ teachers.
A.are all
B.are both
C.both are
D.all are
答案
答案:B
题目分析: both常放在be动词之后, 表示“两者都是……”。all指“三者或三者以上都是……”,句意:他的爸爸和妈妈都是老师,故选B。
His father and mother ____ teachers.
A.are all
B.are both
C.both are
D.all are
答案:B
题目分析: both常放在be动词之后, 表示“两者都是……”。all指“三者或三者以上都是……”,句意:他的爸爸和妈妈都是老师,故选B。