从方框内选单词补全对话。
A: Good morning, Mrs Smith.
B: Hi, children, you’re early.1._______ do you come to school ?
C: Usually, I come to 2._______ foot. 3.__________I come by bus.
A: I often come 4.________ bike .
C: How do you come to school Mrs Smith? By 5.___________.
B: Sometimes, but I usually 6.___________.
A: That’s good exercise.