Here is a basic quiz for you to test your grammar knowledge and I'll explain all answers after you write a comment.
1] I enjoy ....... out
- eat
- to eat
- eating
2] Are you going to ...... party?
- Dan's and Suzie's
- Dan and Suzie's
- Dan's and Suzie
3] It ........ cold yesterday.
- weren't
- wasn't
- were
Write your answers in the comments section and I'll correct them