In the past 70 years, China________historic changes and made great achievements.
A.experienced B.experiences
C.has experienced D.would experience
—Is Penny here?
—Not yet, but she________in half an hour.
A.arrives B.will arrive C.arrived D.has arrived
—Do you think teenagers can’t have a part-time job?
—________. They may learn from working.
A.That’s all right B.Don’t mention it
C.It’s nothing D.Hard to say
—I hear you’ve got an “A” in your English test. Congratulations!
—________.
A.You’re welcome B.Take it easy
C.Many thanks D.It’s a pleasure
—I’m sorry to interrupt you and Max!
—________. We’re having a free talk.
A.Never mind B.That would be nice
C.I hope not D.Go ahead
为响应我市"创建国家卫生城市"的号召，6月15日，200多名市民以绿色出行的方式参与了“生态博兴——环聚麻大湖健步走”活动．请以"共建绿色城市"为主题，根据以下思维导图提示，并适当发表自己的观点，写一篇英语短文．
要求:
1. 80﹣100词（开头的首句已给出，不计算在总词数内）。
2. 文中不能出现自己的姓名和所在学校的名称及其它相关信息，否则不予评分。
参考词汇：吐痰spit 垃圾箱dustbin 交通拥堵 traffic jams
As a middle school student of Boxing, it’s our duty to help build a green city.__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
