1. Manatees eat about 100 _____ (磅).2. In China, we are supposed to _____ (握) hands while we say "Hello" to others.3. The flowers should _____ (浇水) every day.4. My grandfather had to get up at 5 am to _____ (点) the fire for breakfast.5. There will be a free concerts tonight. Some bands will _____ (露面) then.6. We are against _____ (建造) a new zoo.7. We've learned a lot from _____ (科学的) studies.8. There are many _____ (村民) planting the trees on the hill now.9. They often feed the animals in their _____ (空闲的) time.10. This manatee _____ ( 重)1,000 pounds.