Can, could, may, might, must
1. My family _ go abroad next summer.
2. My parents _ buy a pet for me.
3. I _ be invited to my
best friend’s birthday.
4. It _ be pleasant outdoors tomorrow according to the weather forecast.
5. My friends and I _ see each other in July and August.
6. All my friends _ be happy to see each other on the 1st of September.

1. does our institute train teachers? our institute doesn't train teachers. 2. did i enter university three years ago? i didn't enter university three years ago. 3. does she make good progress in english? she doesn't make good progress in english. 4. was moscow state teachers training institute founded in 1872? moscow state teachers training institute wasn't founded in 1872. 5. will they have seminars in history twice a week? they won't have seminars in history twice a week. 6. did she miss two lectures? she didn't miss two lectures. 7. do students take exams at the end of every term? students don't take exams at the end of every term. 8. did he fail in mathematics? he didn't fail in mathematics. 9. does she come from the north of our country? she doesn't come from the north of our country. 10. did she teach us french at school? she didn't teach us french at school.

My father has birthday yesterday. when dad was going home, my mom baked his favorite apple pie and bought pullover for him. I brought the flowers. our grandma knitted a scarf. my father was happy. when I went home, my brother went to the concert. by 6 pm they had been already packed. we were not going home yet , when it rained. buy the end of last year we had been learned to speak English. when the sun had set, they returned home. she spent the money before she returned. had they found you there?