Microblogging(微博) is sweeping across the world. You Can express your ideas on any topic on it. Of course, you might also make comments(评论) on others' microblogs.
The following is Tonv's microblog at Enviroboard and its comments.
Subject: Eco-Friendly Transportation
Saturday 9th June 8:05 am " 
Hi everyone! My name's Tony. I'm doing a project about greener ways to travel. I want to know if anyone has any good ideas. Thanks for your help!                
                                                                  Comments [4]
I think people should do more things online from home. Why pollute the air by driving your car to the supermarket, when you can order your weekly shopping on the Internet~ You can also book holidays as well.                    
                                               Posted by Billy on June 1 lth 7:36 am
I try to use public transportation whenever I can. I take the bus to college and walk home. When my mum wants to give me a lift, I always refuse, as I can get there quickly by bus. Also the buses in my town are electric so they are environmentally friendly!
                                             Posted by Carol on. June 12th 10:35 am           
Why not use two wheels? Any motorcycle will use less fuel (燃料)an a car. You don't get caught in traffic jams either. But in my opinion, the best thing is a bicycle. They don't produce any pollution and help you to keep fit at the same time.                                                      
                                               Posted by Daz on .lune 12th 16:00 nm
I can't get to my university by bus or train. So I found three other girls who live nearby to have a car share with. And now we take it in turns to drive every day. I have cut down the costs -- and most importantly,- I am helping the environment!
                                             Posted by Angela on June 15^th 9:36pm
Billy thinks that we can make less air pollution by            .
A. doing things online at home        
B. driving cars to shopping centres
C. taking buses to the supermarkets
Buses in Carol's town are environmentally friendly because             .
A. they use fuel         B. they are cheap         C. they are electric
Daz thinks riding bicycles ___________.
A. will help us save more fuel        
B. will get caught in traffic jams, too
C. can be very clean and help keep fit
Angela goes to school by car sharing because ___________.
A. she doesn't like buses           
B. she wants to help the environment
C. she wants to go to school quickly
Tony wrote the message on his microblog to ____________.
A. get some good ideas on making net pals
B. get some tips on travelling to the places with green trees
C. ask for some advice on cutting down pollution while travelling