問題詳情：
Good morning, everyone,
I am Li Hue from Xingjian Middle School. The topic of my speech is “Let’s Ride Bicycles”.
As 61 (know) to us all, 62 the improvement of people’s living standards, cars 63 (become) a popular means of transport, 64 (bring) great convenience to our life. 65 , they have also caused some problems such as air pollution and traffic jams.
How can we solve the problems then? As far as I 66 (concern), the bicycle is a good solution. For one thing, bicycles don’t need any petrol and they are energy-saving. For 67 , bicycles are 68 (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.
69 , let’s take the 70 (responsible) to build up a carbon city by riding bicycles. Come on and join us!
Thank you!
【回答】
61. is known 62 . with 63 . have become 64. bringing/ which brings 65. However 66. am concerned 67 . another 68. environmentally 69. Therefore /Thus 70. responsibility
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