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ame to their rescue B. the tall building collapsed C. an emergency measure was taken D. warnings were given to tourists 18. Helen had to shout ________ above the sound of the music. A. making herself hear B. to make herself hear C. making herself heard D. to make herself heard 19. The parents suggested _______ in the hotel room but their kids were anxious to camp out during the trip. A. sleep B. to sleep C. sleeping D. having slept 20 There are hundreds of visitors _______ in front of the Art Gallery to have a look at Van Gogh’s paintings. A. waited B. to wait C. waiting D. wait 21. ______ the employees’ working efficiency, the supervisor will allow them to have a coffee break. A. Improving B. To improve C. Having improved D. Improved 22. In the dream Peter saw himself ________ by a fierce wolf, and he woke suddenly with a start. A. chased B. to be chased C. be chased D. having been chased 23. The storm left, _______ a lot of damage to this area. A. caused B. to have caused C. to cause D. having caused 24. “You can’t catch me!” Ja shouted, ______ away. A. run B. running C. to run D. ran 25. It’s necessary to be prepared for a job interview. _______ the answers ready will be of great help. A. To have had B. Having had C. Have D. Having 26. When asked by the police, he said that he remembered _______ at the party, but not _______. A. to arrive。t leave the water ________ while you brush your teeth. A. run B. running C. being run D. to run 3. Linda worked for the Minnesota Manufacturing and Mining Company,