Write the correct tense or form of the verbs in brackets

Ex6.   Write the correct tense or form of the verbs in brackets.

1.  I ________________ (already/ read) that book. It’s fantastic.

2.  We ________________ (not do) any volunteer work five years ago.

3.  James ________________ (do) lots of volunteer work when he was in high school.

4.  I think people ________________ (eat) more healthy food in the future.

5.  People ________________ (need) about 2,000 calories a day to stay in shape.

6.  ______________ (Alex/ ever/ be) to Seattle? ~ Yes, he ______________ (be) to Seattle once.