В данном задании нужно вставить правильную форму глагола "to be" в настоящем времени (Present Simple). Он изменяется в зависимости от подлежащего.
1. He is born in 1998. (He/She/It + is)
2. We are students now. (We/You/They + are)
3. We are good friends in our group. (We/You/They + are)
4. It is an interesting book. (He/She/It + is)
5. Who is absent today? (Who/What + is)
6. He is a student. (He/She/It + is)
7. What is he? (He/She/It + is)
8. These are my pencils. (These/Those + are)
9. Where is this book? (He/She/It + is)
10. What are their names? (We/You/They + are)
11. Mary is a girl. (He/She/It + is)
12. Who is he? (Who/What + is)
13. What are you? (We/You/They + are)
14. This man is in the room. (He/She/It + is)
15. How is she? (He/She/It + is)
16. How are you? I am fine. (We/You/They + are; I + am)
17. How is your friend? (He/She/It + is)
18. Is he your son? (Is + He/She/It)
19. Tomorrow we will be at home. (For future meaning, but the instruction implies present simple. However, contextually, Future Indefinite is correct here. If strictly Present Simple is required, then "Tomorrow we are at home." would be grammatically correct but contextually less fitting). Let's assume Future Indefinite is the intent given the table above. If Present Simple is strictly required, then "are".
20. Are you a sportsman? (Are + You/We/They)
21. There are no book on the table. (This seems incorrect in the original text, likely meant 'books'. Assuming 'book' is singular, it should be 'is'. If 'books' is implied, then 'are'.) Given the context of 'no book', it should be 'is'. Let's assume 'book' is singular.
22. It is my parents' car. (He/She/It + is)
23. There are 20 students in our group now. (There + are + plural noun)
Ответ: 1. is 2. are 3. are 4. is 5. is 6. is 7. is 8. are 9. is 10. are 11. is 12. is 13. are 14. is 15. is 16. are, am 17. is 18. Is 19. will be (or are, depending on interpretation) 20. Are 21. is (assuming singular 'book') 22. is 23. are