Помогите с контрольной.
1. Mr. Green __ at the University since 1989.
a) has been teaching
b) has been taught
c) is teaching

2. A new book __ by that company next year.
a) will be published
b) is publishing
c) will publish

3. A prize __ to whoever solves this equation.
a) gives
b) will be given
c) will be giving

4. The house __ by a pop star.
a) bought
b) have bought
c) was bought

5. Have you any idea who is going to __ at the meeting?
a) tell
b) speak
c) say
d) talk

6. First of all I'd like __ a few words about my background.
a) tell
b) speak
c) say
d) talk​