John found it a challenge to meet the needs of the boss. __________, he had no way to satisfy him.
The news reporters hurried to the airport, only_______ the film stars had left. A to tell B to be told C telling D told
_______ many times, he finally understood it. A Told B Telling C To told D Having been told
------What _______ can you draw from the result of the experiment. ------Iron doesn’t rust in air-free water. A decision B conclusion C impression D expression
Believe it or not, I was completely _____ by my students’ trick on April Fool’s Day.
Jenny, hurry up, I am afraid you won’t have time to _______before the party.