Presents Simple, Presents Continuous, Past Simple Exercise1

Time expressions:
Presents Simple :every day, on Mondays, in summer, once a week, never, sometimes, often, usually, always...
Presents Continuous :now, at the moment, at Presents, today, Look!.
Past Simple :yesterday, last week, two years ago, in1991...

Fill in the gaps with the correct form of verbs. In negative sentences use short forms : isn't, didn't...
1)Tom............that wall two month ago. (paint)
2)........he....... a trre yesterday? (climb)
3)Mum...........me how to ride a bike now. (teache
4) They........... at the moment. (not/eat)
5)Sue..........a few books every month. (read)
6)I............to school on Saturdays (not/go)
7)We.............that film a week ago. (see)
8)..............she tea every day? (drink)
9)Look! What............... he................? (do)
10)He..............me yesterday. (not call)