Điền từ trong bảng vào chỗ trống thích hợp : vehicles , across , ride , fells , break , rules , accidents , after
1. I stayed at home and looked .......... my younger brother yesterday .
2. Does our bike ever ............... down on the way to school ?
3. We must always obey traffic ............ for our safety.
4. He used to ............. a tricycle when he was three years old .
5. Now there are more traffic ................ than there used to be in this city
6. There did not use to be many ................. on the roads in my home town
7. He lives in a small village in the mountains so he never .............. worried about traffic jams
8. You should remember to walk ................ the streets at thr zebra crossings .