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up since last year. 5. So far, many manmade satellites __________(send) up into space. 6. My father __________(teach) puter science in a university. 7. The hard task can’t __________(finish) in two months. 8. Knives __________(use) for cutting things. 9. Lingling __________(ask) Betty to attend her birthday party yesterday. 10. Can the magazine __________(take) out of the library? II. 改寫下面的句子,使句意不變,每空