所有格和宾格都完全可以,因为不会有歧义
语法上严格来说所有格更好
两句都是finishing it 是宾语,you和your只是限定词而已
这两句时态完全没有问题,没有必要改为现在进行时,look forward to用一般现在时正常得一塌糊涂
1.We should look forward to the futurity.
我们应该展望未来.
2.We look forward to the return of spring.
我们期待着春天的到来.
3.I am familiar with his work and look forward to hearing his views on Literary and artistic creation.
我熟悉他的作品,并期待他能就文艺创作问题发表自己的见解.