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Question 1. Never ______ him stand on the deserted station platform.
Question 2. Out ______ for a walk after she finished doing her homework.
Question 3. Not only ______ to determine the depth of the ocean floor, but it is also used to locate oil.
Question 4. ______ Mozart was an accomplished compose while still a child.
Question 5. He listened so attentively that not a word ______
Question 6. Not only ______ to speak to him, but she also vowed never to see him again.
Question 7. Only when you grow up,_____the truth.
Question 8. The African killer bees could not be handled safely, nor ______
Question 9. Not until 1856______across the Mississippi River.
Question 10. We spent nearly 3 hours waiting outside the station, then out ______
Question 11. The instructor blew his whistle and ______
Question 12. ______ will China be the first to use nuclear weapons.
Question 13. ______ with my previous job, I would have won a higher promotion and I ______ in this unfortunate position now.
Question 14. Down _____ when he was passing under the tree.
Question 15. Seldom ______ far enough north to disturb South Pacific shipping lanes.
Question 16. ______ advised on what and how to prepare for the interview, he might have got the job.
Question 17. Only after she had finished the course did she realize she ______ a wrong choice.
Question 18. ______ an emergency arise, call 911.
Question 19. Nowhere in the northern section of the United States ______ for growing citrus crops.
Question 20. ______ she could not say anything.