My hometown has changed so much that I can't ________ it.

I often watch movies to practice my spoken English. I think it ______.

You are working too hard.You’d better keep a________between work and relaxation.(2012·天津，3)

You can’t see things clearly through a telescope unless it is _____ correctly to your sight.

In dealing with public relations, we should make every effort to prevent the _____ in personality.