1.peter and his brother (learn)..english for three years
2.mr.green(play).. chess since eight o" clock
3.it(not rain)...since last week
4.we (not see).. our new teacher yet
5. i (study)... very hard for his examination
6,my uncle (work)...in this factory for ten years
7.she (see).. this film before
8.the weather ( be) ....quite good since christmas
9.i (have) ... this bike since i was a teenager,and i still use it
10,he (play)... for the football club forr several years, but I"s time to leave it now
ex9
1,I (have) this bike since I was a teenager and I still use it
2, the weather (be).. quite good since I was a teenager, and i still