2.　　What can one person do to save Mother Earth?A lot! 　(38) Here are some examples:  1. 　(39) You can walk, ride a bike, take a bus, or take the MRT. Driving less is a great way to help our earth.  2. Try not to use paper cups. Bring your own cup to reduce trash.  3. Remember to turn off your TV, CD player, computer, and lights when they are not in use.　　　(40) This way, we can have a cleaner and healthier earth.

【題組】38 )
(A)　Please sign your name to help Mother Earth.　
(B)　Many teachers have students sort trash every day.　
(C)　You can ride a Q bike for free for the first half hour.　
(D)　Just some easy changes can help make Mother Earth a better place to live.