问题
补全对话，情景问答
| 根据所给的情景提示选择正确的应答。 |
| 1.当你在街上遇见朋友时，你应说: _____ |
[ ] |
| A. Hello! B. G  ood morning! C. Thank you. |
| 2. 当你遇见新同学，你可以问: _____ |
[ ] |
| A. What's this? B. What's your name? C. I'm fine. |
| 3. 如果一位新朋友愉快地对你说：“Nice to meet you.”，你应回答：_____ |
[ ] |
| A. OK. B. Nice to meet you, too. C. Thank  s. |
| 4. 当你想知道朋友的电话号码时，应问：_____ |
[ ] |
| A. What's your name? B. How are you? C. Wh  at's your phone number，please? |
| 5. 如果你想知道对方姓什么时，应问：_____ |
[ ] |
| A. What's your last name，please? B. What's your first name，please? C. How old are you? |
答案
1. A 2. B 3. B 4. C 5. A
O2＋O Cl＋O3→ClO＋O2 ClO＋O→Cl＋O2