根据句意填入适当单词 1. His mother __________ him and said good night to him. 2. We're very happy to see __________ again after one-week sailing on the sea. 3. You are supposed to __________ when you meet Japanese. 4. The shop is very __________ on Sundays. There're so many people. 5. We won the first prize at the sports meeting. Our teacher was very p __________ with what we did. 6. Before you go to England, you must learn the table __________ there first. They are different from ours. 7. He doesn't like to use a __________ when he eats soup. 8. Don't throw about __________. It's our duty to protect the environment. 9. Edison is a great inventor. When he was a child, he began to __________ with his new ideas. 10. Can you __________ a sentence by using these words?