2. Tomorrow I will update my facebook after I …. my homework
3. We tried the product before we ….. to buy it
4. We should try the product before we …. to buy it
5. When I …. there, the headmasterhad already left.
6. while I was walking home, I … an old friend
7. By the time I leave this city, I….. here for two years
1. Yesterday I updated my facebook after I…. my homework
1 did
2 do
3 decided
4 decide
5 was
6 met
7 was