问题
填空题
根据句意及汉语提示填空
1. Driving carelessly __________(引起) accidents.
2. It's our __________(职责) to save our earth.
3. They think walking is a good way to relax __________(他们自己).
4. Germs can get into the human body __________(通过) the skin and the mouth.
5. Xu Xiao taught himself on the __________(互联网).
答案
1. causes 2. duty 3. themselves 4. through 5. Internet