1 . There [be] were thirty students in my class last year.
2. My sister can [ sing ] sing many english songs.
3. Lan [ visit ] visited her grandparent yesterday.
4. We [ buy] bought this house two months ago.
5. She [ go] goes to go to school everyday.
6. It [ rain] is raining very hard now.
Chúc bn học tốt, nhớ cho câu trả lời hay nhất và cám ơn nha, thanks~