下列关于服从的叙述，正确的有( )。 A．命令者的权威性越大，越容易导致服从 B．

Nowadays, it is very         for us to live a low-carbon life. The first thing we can do is         bikes instead of driving cars. First, bikes are       than cars and everyone can afford it .Second, it’s easier         parking places for bikes. Third, the petrol is not necessary for bikes, so bikes won’t produce dirty air to make pollution to our environment. Finally, we can ride bikes to keep         Let’s ride bikes instead of driving cars to protect the environment!

小题1:	A．importance B．easy C．difficult D．important

小题2:	A．ride B．rides C．riding D．rideing

小题3:	A．much cheap B．much cheaper C．much dearer D．smaller

小题4:	A．to find B．find C．look for D．find out

小题5:	A．fast B．slowly C．easy D．fit.