According to the passage, people know that mortorbikes and cars emit dangerous gases ________ A. so they do not travel by motorbikes and cars B. so they prefer traveling by bicycles C. but th
According to the passage, people know that mortorbikes and cars emit dangerous gases ________
A. so they do not travel by motorbikes and cars
B. so they prefer traveling by bicycles
C. but they still prefer traveling by mbtorbikes and cars
D. and they enjoy traveling on foot