1. You shouldn't eat too much meat. => you'd rather not eat too much meat
2. Because of the bad weather, we had to stop our picnic. =>the bad weather prevented us from having a picnic
3. Miss lan runs fast. =>miss lan is a fast runner
4. Lan didn't go to school yesterday because of her sickness. => because lan was sick, she didn't go to school yesterday
5.our summer vacatoin lasts two months. =>we have a two- month summer vacation