Điền từ thích hợp

1,_______ teno' clock
2._________ Christmas
3. _______ ast summer
4. ___________ ten minutes
5. ________ one month
6. __________ my birthday
7. ______ the last lesson
8. ______ along time
9.______aweek
10._____  the beginning of the term
 11.__________ages
12,_______we met the last time