PUT THE VERBS IN THE PAST SIMPLE OR THE PAST PERFECT TENSE
1 The grass .......... (be) yellow because it ......... (not/rain) all summer .
2 The lights .......... (go off) because we .......... (not/pay) the electricity.
3 The children .......... (not/do) their homework, so they ..........(be) in trouble.
4 They  .......... (not/eat) so we.......... (go) to a restaurant.
5 We ..........(not/can) go into the concert because we ..........(not/bring) our tickets.
6 She .......... (say) that she .......... (not/visit) the UK before.
7 Julie and Anne .......... (not/meet) before the party.
8 I .......... (not/have) breakfast when he .......... (arrive).
9 He .......... (not/use) email before, so I .......... (show) him how to use it.
10 You .......... (not/study) for the test, so you ........... (be) very nervous.