Answer:
past
Explanation:
there are key words like was and last, so its past tense
Is - two billion dollars is a unit, one unit so it is singular and you use the singular verb
think - scientists is a plural, therefore, you must use the plural verb form of think
Answer:
please answer in atleast a paragraph. No plagiarism please I need this done in less that an hour please help. if you answer this please answer my other questions about maus too.
Answer:
I think its A. Hope this helps !!!!
Explanation:
