1) I go to school six days a week at present, but I enjoyed my summer holidays a week ago.
2) I have to learn English at present, but I worked in the garden helping my mother a week ago.
3) I meet my schoolmates every day at present, but I missed them a week ago.
4) I have a lot of classes at present, but I spent a lot of time on the beach a week ago.
5) I get up early in the morning at present, but I kept late hours a week ago.
6) I work hard every day at present, but I played outdoors with my friends a week ago.
7) I don't watch TV every evening at present, but I watched lots of TV programmes a week ago.
8) It rains a lot at present, but it didn't rain at all a week ago.
9) The leaves of the trees are not green and flesh at present, but they were green and flesh a week ago.