Question

4. Read the text and fill in the gaps with the correct forms of verbs
as per subject and context.
5x10=5
Various kinds of sounds are seriously (a)---- (pollute) the
environment. According to the UN, the normal tolerance limit of
sound (b) ---- (be) 45 decibels. When the vibration of sound is at
a tolerable, pleasant level, it is simply (c)---- (call) sound. But when
it is sharp and harsh to the ears, it (d) ---- (become) noise. Serious
harm can be (e) (do) to people if they are regularly (f) --
(expose) to sound (g) - (exceed) 70 decibels. Town people (h) -
(to make) sound by (i) ---- (drive) vehicles, making phone calls,
ringing bells, using loud speakers and alarm clocks and playing
different kinds of musical instruments while (j) ---- (enjoy) music..
nonchos​

Answer 1

1.Pollutes
2.is being
3.called
4.becomes
5.done
6.exposure
7.exceeded
8.make
9.driving
10.enjoying