He used to spend a lot of time computer games.

Be quiet, the head teacher Mr. Gu is coming.— Don’t worry. It _____ be him. Mr. Gu is much fatter.

Everyone has his own dreams, but not all the dreams can always _________.

Why not take ____ umbrella with the sign “Made in China”? It’s ____ useful one.— What ____ good advice.

I have been to London. I ____________ there last month.