题干
They got two free tickets to Canada; otherwise, they'd never have been able to ______ to go there.
A：admit
B：avoid
C：appreciate
D：afford
答案(点此获取答案解析）
D
They got two free tickets to Canada; otherwise, they'd never have been able to ______ to go there.
A：admit
B：avoid
C：appreciate
D：afford
