IV. Give the correct form of the verbs in brackets to complete the sentences. (1 pt)
1. You (celebrate) …….…. your grandparents’ anniversary last week?
2. Nomadic children (not see) ……… many people from the outside world.
3. Hung King Temple Festival (become) ….. a public holiday since 2007.
4. Computers should (use) ………….…... for a limited time.
1 Did you celebrate
2 don't see
3 has become
4 be used