I.
1 left
2 Will he write
3 didn't read
4 goes
5 won't clean
6 do
7 was
8 has
9 discovered
10 often doesn't listen
II
1 Are your students doing
2 is coming
3 isn't raining - shining - is
4 drives
5 am having
III
1 Was - studying
2 was shining - went
3 came - was writing
4 didn't do
5 were playing - was writing
6 had taken - came
7 was - had done
8 Did- send - had written
9 came - had gone
10 had finished
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