2019年mba考试英语模拟题——名词1131

{01}He has five _____, and they are all doctors working in the same hospital.
A.sons- in-laws
B.son-in-laws
C.sons-in-law
D.son in laws
解析：
本题选C。

{02 We had already read the _____ before we operated the machine.
A.introduction
B.direction
C.explanation
D.instructions
解析：
本题选D。