新版pep小学英语六年级上册第二单元第三课时第四课时.ppt

1. In the USA people on bikes must wear h ( ) . 2.I must pay a to the traffic lights. ( ). 3. We mustn’t go to school by . ( ). 4. Don’t let the dogs run too fast by f . ( ). 5.You are so e today. ( ). helmet 1. In the USA people on bikes must wear h ( ) . 2.I must pay a to the traffic lights. ( ). 3. We mustn’t go to school by f . ( ). 4. Don’t let the dogs run too fast by s . ( ). 5.You are so e today. ( ). helmet attention 1. In the USA people on bikes must wear h ( ) . 2.I must pay a to the traffic lights. ( ). 3. We mustn’t go to school by f . ( ). 4. Don’t let the dogs run too fast by s .