选出你所听到的短语。
(_____) 1. A. by bike B. by subway C. by bus
(_____) 2. A. in the front of B. a lot of C. in front of
(_____) 3. A. on foot B. on the right C. on the left
(_____) 4. A. go to B. go down C. sit down
(_____) 5. A. across the road B. cross the street C. go down this street