Please kindly indicate the correct answers for the following questions and justifications to the answers.
1. They do these things so quietly that nobody is ever sure of what (is/ are) happening.
2. Various kinds of food (has /have) been already been prepared. Come and help yourself to (it/them).
I suppose food is an uncountable noun, so i assume singular verb is appropriate. But i aint sure about the following pronoun.
Need the answers urgently. Thank you.
Awence