Kangkang is good _____ running. He thinks it is good _____his health.[ ]

. — Why were you so late for work today? — ____ to the office was not very easy this morning because of the traffic.

Have you got any books on cooking? I’d like to borrow ____________. — OK, here you are.

I am looking forward _______ the new film.

Is there _____ in today’s paper?