Tom’steacherandfriendMr.Smith.A. areB. isC. arebeingD. has

问题补充：

Tom’steacherandfriendMr.Smith.

A. are

B. is

C. arebeing

D. has

答案：

A. are

(答案→)B. is

C. arebeing

D. has

解析：Tom’steacherandfriend，因friend前没有冠词，所以实际指的是同一个人。