Question

1.These youngsters are clever _________ various activities.

A/ with B/ at C/ by D/ on
2. We watched television _________ two hours last night.
A/ for B/ during C/ while D/ as
3. I fell asleep ____________ I was watching television.
A/ for B/ during C/ while D/ as

Answer 1

B/ at, A/ for, and C/while

Answer 2

The answer is a I know this because