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10. That happened at the London Zoo.(對(duì)畫線部分提問(wèn)) II. 完成句子 1. If you exercise every day, your heart ____ be stronger. (將會(huì)變得) 2. It is _____ (好主意) to listen to ______.(一些音樂(lè)) 3. It is ___________ be nervous. (不緊張很重要) 4. It is ____(必要) to get ______(準(zhǔn)備) for math exams? 5. They have ___________. (到達(dá)了機(jī)場(chǎng) 6. They ________ the room. (剛沖出了) 7. We have already _______. (換了新玻璃) 8. We have ________ doors. (已經(jīng)修理了 9. Wha