Bob: ______ .Kelly: I would like to visit the country again.
25()
A. non-smokers
B. non-smokers’
C. non - smoker’ s
D. non - smoker
22()
A. polluting
B. be polluted
C. polluted
D. to be pollute
Amy: What do Beijing people usually do to keep fitRonald: ______ . Women often try dancing, and men often go hiking.