The boy was so ______ in reading that he didn’t hear his father knocking at the door.

The first lady of the USA, Michelle Obama visited China this spring. She with her mother and two daughters China for a week.

I can’t connect my computer to the Intemet. There must be ______ wrong with it.

It is good _____ her to relax in the gym every day. [ ]

This pair of trousers is very beautiful. May I ______ ?