We need to get this project done by the end of the week.
将下面的句子用5种不同的方式重写，以表达相同的意思。
1. This project must be finished by the end of the week. 
2. We should finish this project by the end of the week. 
3. Completion of this project should take place before the end of the week. 
4. We must complete this project by the close of the week. 
5. The project must be done by the end of the week.