Duringthelastthreedecades,thenumberofpeopleparticipati...

问题详情：

 During the last three decades, the number of people participating in physical fitness programs _____ sharply.

A. was increasing    B. has increased   C. had increased      D. will be increasing

【回答】

B

知识点：动词时态与语态

题型：选择题