问题详情：
Good morning, everyone,
I am Li Hua from Xingguang Middle School. The topic of my speech is “Let’s Ride Bicycles”.
As 1 (know) to us all, 2 the improvement of people’s living standards, cars 3 (become)a popular means of transport, 4 (bring) great convenience to our life. 5 , they have also caused some problems such as air pollution and traffic jams.
How can we solve the problems then? As far as I 6 (concern) , bicycles is a good solution. For one thing, bicycles don’t need any petrol and they are energy-saving. For 7 ,bicycles are 8 (environment) friendly because they won’t give off waste gas. What’s more, riding bicycles is a good way for us to exercise and it is beneficial to our health.
9 , let’s take the 10 (responsible) to build up a carbon city by riding bicycles. Come on and join us!
Thank you!
【回答】
known become ging ver
concerned her ronmentally efore onsibility
知识点：语法填空
题型：未分类
