Did Alan see his old friends yesterday? —Yes, he did. Hehis old friends for several years.

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

Are you going to Beijing by air?— It’s fast, but expensive. So I’m not sure. I _____ take a train.

I have P.E._____ the afternoon of Tuesday. [ ]

Once a year, people take part in “_______ Lights” activity to help save energy.