Mobile phones are very popular in China now and they are ______ than before.

Mr Li, I am sorry I ______ my exercise-books at home.—That’s all right. Don’t forget to ______ them to school tomorrow.

What do you think of Tom? —He has been working very hard. ______ he is an advanced worker.

I don’t like to sit ___ Tom’s right. I would like to sit ___ the back row. [ ]

We didn’t go out because it ________ heavily last night.