1.Timmy goes to school_____every day.It's 5 minutes' walk from his home to school
A.in a bus B.by MTR C.on foot D.by tram
2.I didn't know she was a foreigner______she spoke.
A.when B.until C.as D.while
3.Leaves_____browm in autumn
A.turn B.turned C.turn to D.turned to