The art show was _______ being a failure;it was a great success.

(2014·山西高三上学期诊断考试)Chengdu has focused on improving the surrounding countryside，________encouraging large­scale city expansion.

If you don’t want to fall behind others, you must _____ current events.[ ]

It’s raining heavily, isn’t it?–Yes, ______ yesterday.

The doctor advised me to ______ exercises.