Question

error correction

by products of fuel combustion is (a) _________ __________

important at houses with indoor kitchen.
(b)_________ __________

it is not only a burning of dried
(c)_________ _________

wood dung and fuelwood which is
(d)__________ _________
responsible kerosene and liquid

Petroleum gas is equally effective
(e)_______ _______

Answer 1

a) is ---- are
c) a --- the
d) is --- are
e) is --- are

Answer 2

hey mate
is ---are
a --- the
is---- are
is ----- are