（1）Mike is ____.
A.a teacher
B.a worker
C.a student
（2）He is good at ____.
A.writing letters
B.protecting the environment
C.drawing pictures
（3）He has asked the factory to ____.
A.stop polluting the lake
B.move away
C.pay much money
（4）How many kilos of waste paper has he collected so far？
A.2，000.
B.50.
C.5.
（5）He donates money to Greener China by ____.
A.planting trees
B.holding charity shows
C.selling wastes