Tom, why did you make no reply to me when I called your name in the street just now?—Sorry, Jim, I_______ to my wife on the phone.

Everyone was _________ when they heard the _______ news.

There are lots of shops on _________ of the street.

_____can work out the problems because _____of the problems is easy.

Why are you so happy?—That’s because an old friend of is coming.