As the family did not make a(n) ahead of time they had to wait at the restaurant in ord

问题补充：

As the family did not make a(n) ahead of time, they had to wait at the restaurant in order to get a table.

A. approval

B. reservation

C. arrangement

D. enquiry

答案：

A. approval

(答案→)B. reservation

C. arrangement

D. enquiry

解析：句意，因为这家人没有提前预定，为了得到一个桌子，他们不得不在饭馆等。Approval同意reservation预定arrangement安排enquiry调查，根据题意，故选B。