Mattayom 1 Entrance Exam - Spot the Mistake - Part 5

Can you spot the grammar mistakes? Click on the wrong words. There are TWO per sentence.
1. My friend and I to the countryside weekend.
2. Our teacher us to a short essay about Thai culture.
3. He remembers to water the plants before home.
4. We enjoyed the party and many interesting .
5. They seen this movie yet, but they plan to it soon.