IV. Supply the correct tense or form of the verbs in parentheses:
1. If you drink more water, you (not/ have) …..……………. any more health problems.
2. Most of the pollution (come)…………………………. from human activities.
3. The kangaroo (become)…………………….... a symbol of Australia since 1773.
4. All the people (have)…………….……. dinner when the typhoon came yesterday.
5. Mr. John (deliver)………….… a speech at 9 a.m next Friday at the National University.
won't have
come
have become
had
will be delivering