Fill in the blank with a modal verb in its correct form.

1. All the music in those albums [1] by famous artists.
a. was composed and produced
b. were composed and produced

2. Someone [2] my passport and gave it to the security guard.
a. was found
b. had found

3. A lot of people [3] since the start of the outbreak.
a. are fired
b. have been fired

4. My classmates and I believe that a lot of time [4] on reviewing the same vocabulary over and over.
a. is wasted
b. has wasted

5. They said the book [5] by the end of the year.
a. has been published
b. will be published