Question

My parents and I ________ good at skating. A.both are B.are both C.are all D.all are

Answer 1

答案C
(both表示“两者都”,all指三者或三者以上“都”,My parents and I是三个人,应该用all．all和both充当主语同位语时,其位置应紧跟主语之后,实意动词前．如：The students all went home.又如：They both agreed to stay there.如果句中谓语是be动词,则放在be动词之后,如：They are both teachers.)