问题
选择题
22．Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
A．becomes
B．became
C．has become
D．had become
答案
答案：C
搜题请搜索小程序“爱下问搜题”
22．Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
A．becomes
B．became
C．has become
D．had become
答案：C