Question

solve it......................

Answer 1

A. Stays, stay
B. Are, is
C. Of, to
D. See, seen

Answer 2

Budgies stay near water when it's too hot. But when there is a lot of rain, they spread out to far off places. They are sometimes seen nestling on trees. 

[1] stays - stay (Because budgies is a plural noun)
[2] are - is (rain is a singular noun)
[3] of - to (of doesn't make sense; to refers to the distance)
[4] see - seen (They are seen doing something, they can't see themselves while nestling)