In the office there are (Пишешь число людей) people. In the office (пишешь число предметов) of subjects
Our institute has several buildings.Many students study the third-year subjects.Students had training the third-year industrial last summer.
1. am// was
2. is
3. are
4. were //are
5. will be
6. is
7. was
1 went
2 bakes
3 will write
4 enjoyed
5 worked
6 celebrates
7 do
8 send
9 will bring
10has
1.Tom hasn`t created a personal webpage.
2. I have played some new online games.
3. She has joined an online chess club.
4. Fifty people has logged on to website.
5. I haven`t messeged my friends today.
6. Your grandma hasn`t used a computer.
7. They hasn`t chatted online before.
8. We`ve visited your webcite.
Если что PP формулируется как Have/has + глагол в 3й форме (ed на окончании).