Răspuns:Ex I
1.they passed the exam and then they wrote to us about it.
2.Rebecca won the first prize and then let us know about it.
3. We did all the exercises and then told the teacher about it.
4.jane cut the flowers and then told mother about it.
5.you bought a new hat and then let let your wife know about it.
6.I lost my umbrella and then admitted it.
7.Father repaired my bicycle and then told me about it.
8.we made a good bicycle and then told me about it.
9.the child took the medicine and then let the doctor know about it.
10.i had an accident and then let he police know about it.
ExII
Locked, left, sat, opened, had, went, bought, got, swept, dusted, Took, Felt, stopped, went, understood, did, read, bust, left, went.
ExIII
1.Had been
2.has said
3.had left.
4.has not seen
5.( rezolvată)
6.has not eaten.
7.had spreaded
:)