Mỗi câu sau có 1 lỗi sai. Hãy tìm lỗi sai và sửa

IV. Mỗi câu sau có 1 lỗi sai. Hãy tìm lỗi sai và sửa.

1. I’m delighted telling you that I’m going to have interesting activities.

 2. Lan asked him if he like watching television.

3. This hotel has been already in business for fifty years.          

4. They have gone to Da Nang City five months ago.

5. She has to separate the rice to the husk