Here are the completed sentences using the words given:

1. We **do not have** English every day.
2. What **did you have** for lunch last Sunday? - I **had** chicken.
3. Her mother **is** home now. She **was not** home last Sunday.
4. They **have worked** this company for 20 years.
5. I **will visit** you next weekend. You **will be** free next Sunday.
6. The students **are working hard to prepare** for the coming test now.
7. What **did they do** yesterday when you **arrived**?
8. This time next Monday, he **will fly** to Ho Chi Minh City.
9. We **have bought** enough food. We **will have** a party tonight.
10. Before he **bought** that house, he **worked very hard to earn** money.