-Is manager and engineer to attend the meeting this afternoon?-- I have no idea.A

问题补充：

---- Is manager and engineer to attend the meeting this afternoon?

---- I have no idea.

A. a; a

B. the; /

C. the; the

D. a; the

答案：

A. a; a

(答案→)B. the; /

C. the; the

D. a; the

解析：解本题的关键词是句首的谓语动词is，说明主语是单数，因此只有选B，the manager and engineer“经理兼工程师”，是指同一个人，而the manager and the engineer则是指“那个经理和那个工程师”，两个人，谓语动词应该用复数。