1.1.1. Underline the verbs in the appropriate form.
1) I (had done / did) the exercise by 7 p.m.
2) I (did / was doing) the exercise and went for a walk.
3) I (did / was doing) the exercise when Tom called me.
4) I hoped I (will / would) do the exercise the next day.
5) I (have been doing / have done) the exercise for a long time already.
6) I (have done / did) the exercise and can have lunch now.
7) By the time my sister came home I (had already done / already did) the
exercise.
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