问题
选择题
All of them have ___ smoking.
A．give up
B．gave up
C．given up
D．to giving up
答案
答案：C
have+P.P 构成现在完成时;give up间意思是:放弃.
搜题请搜索小程序“爱下问搜题”
All of them have ___ smoking.
A．give up
B．gave up
C．given up
D．to giving up
答案：C
have+P.P 构成现在完成时;give up间意思是:放弃.