—I cannot find Tom anywhere. —He _______ have been off long. I heard him make a call just now.

Anderson is one of those ________ appear friendly but in fact are hard to deal with.

There is no doubt ________ Herbert is the most industrious student in our class.

Look at the clock! It＇s time _________ work.

The representative of the company demanded that part of the agreement ________ revised.

I tried hard, but I couldn＇t find the______to the problem.

This company has two branches: one in Paris and _________ in New York.

Jack＇s train _________ at 50＇clock next afternoon, let＇s go to see him off.

She was delighted in ________of friends and relatives.

Thus ________ between England and France which was to last for 100 years.

There were ________ for Saturday＇ s movie.