Complete the following sentences with didn't need to or needn't have + verbs in bold in the correct form.
NEEDN'T HAVE + PAST PARTICIPLE means that the action is done, but it was unnecessary and even a waste of time.
You needn't have cooked dinner for me. I ate on the train. (You cooked supper but now you know it was not necessary).
DIDN'T NEED TO + INFINITIVE means that the action was not necessary and the person did not do it. We bought a take-away meal so I didn't need to cook. (It was not necessary for me to cook and I knew this at the time).
1) needn't have done 2) needn't have bought 3) didn't need to take 4) didn't need to sign 5) didn't need to get 6) needn't have climbed 7) needn't have waited 8) didn't need to wake 9) didn't need to pay 10) needn't have taken