When he is free, he often helps his parents ________ some housework.

I think the blue shirt looks _____ better on you than the red one.

Let’s take a walk ___________ the park on Center Street.[ ]

What a beautiful city our hometown is! There are many trees ___________ of the road! — Yes, and ____________ of the trees is growing larger and larger.

Please send ______ my best wishes when you go to visit your grandparents.