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saw him yesterday. He was writing a letter.(改為同義句 ) I _____ him _____ a letter yesterday. 9. They asked me to help to clean up our city parks.(對(duì) 劃線(xiàn)部分提問(wèn) ) _____ _____ they _____ _____ to do? 10. Uncle Sam repaired his TV by himself.(改為同義句 ) Uncle Sam ___ his TV _____ _____ _____. Ⅳ . Choose the best answer from the given choices. 1. — Bob, you need ___ your bedroom. It’ s so dirty. — Sorry, mom. I’ ll do it right away. A. clean up B. to clean up C. cleaned up D. cleaning up 2. We are sure that we’ ll ___ an idea to solve the difficult problem soon. A. put up B. give up C. give out D. e up with 3. We can ask our parents ___ us finish the work. A. help B. helping