He pretended ______ the problem, but he ______.
Students should always remember theory and should not at all be ___ from practice.
Ten years later, the prisoner of war ___ free and regained his ___.
He demanded ___ here in time.
As these goods are of different styles, the prices ___ 100 yuan to 9 yuan.
–What’s that unpleasant noise? –Oh, the road before the main gate ___.