题目

用所给单词的适当形式填空。1. My parents go __________ (buy) some meat and fruit in the supermarket.2. Miss Sun’s birthday is on the __________ (six) of October.3. —How many __________ (day) are there in January?—There are 31.4. —How can I __________ (open) the door?—Let me help you.5. —What’s the cat doing?—It __________ (climb) the tree.6. My __________ (sister) birthday is in May.9．（1）乙烯与溴水的反应CH2=CH2+Br2→CH2BrCH2Br（2）2-溴丙烷在氢氧化钠水溶液中的反应（3）溴乙烷在氢氧化钾醇溶液中的反应CH3CH2Br+NaOH$→_{△}^{醇}$CH2=CH2+NaBr+H2O．