1. There 're a few potatoes in the basket,arent there?.
Tere' re nearly no potatoes in the basket,right?.
2. How long did you spend on these works?.
How long did you take to finished these works?.
3. This baby maybe has a fever.
4. There' re fifty desks in the classroom. One is for teachers',the other are students'.
5. He left his hometown two years ago.
He left his hometown before two years.
If you has any others question.you may ask me by this
[email protected] you can find your answer in these words
参考资料:by myself^^