II. Chia động từ to be thời quá khứ đơn hoặc hiện tại đơn trong các câu sau đây:

1. The homework ............... very difficult yesterday

2. The children ............... in the park 5 minutes ago.

3. Nha Trang ............ a beautiful place.

4. I ............... late for scholl yesterday.

5. Where ............... she yesterday? She ............... at home

6. We ............ tired today. We ............... at the party last night.

7. She ............ unhappy because she doesn’t have any friends in the city

8. ............ you at home yesterday morning?