If you work hard, it’s not difficult for you ______ English well.

John Snow was ____famous doctor in London—so expert that he attended ____Queen Victoria as her personal physician.

Let’s go and play _____ ping pong. I don’t want to play ____piano.

They felt ______ after listening to the ______ music．

What a traffic jam! I’m going to be late again.—Yes. The traffic now is than it used to be.