III. Give the correct tense/ form of the verbs in the brackets. (2 pts)
1. I (be) __________ happy if I pass my exam.
2. He (not eat) __________ anything for twenty-four hours.
3. Wilson L. Judson (invent) _________ the zipper in 1893.
4. We are much interested in (work) ________ with him soon.