The expression on his face suggests he ________ have failed in the competition.—I guess so. It’s not easy after all.

If the Watergate Incident__________Nixon would not have resigned from the presidency.

We should take good care of the elderly, as they are ______ to the sudden change of weather.

Have you brought withyou We won’t have time to come back.—Don’t worry. All the things we need arehere, in this big bag.

ousin is said ________ anew computer program recently, but do you know when he will finish it