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С. Put the verbs in brackets into the correct tense.

11 Ron …………………………………. (not/go) to school yesterday.
12 Eat your lunch or 1................................ (not/buy) you an ice-cream.
13 Michael ……………………………….. (play) with his toys at the moment.
14 "How long …………………………. (you/be) friends with Jim?" "Since 1996."
15 I always …………………………... (wash) my car on Sundays.
16 Jerry ………………………………... (visit) four European countries so far.
17 ................................... (you/want) to go out tonight?
18 Don't go in the kitchen! I ……………….(just/wash) the floor