41. The CRPF men swung into action and cordoned . . . . . . . . the area.

over
off
out
of

Detailed SolutionThe CRPF men swung into action and cordoned . . . . . . . . the area.

42. Although he is blind, he is very fast . . . . . . . . calculations.

in
with
at
about

Detailed SolutionAlthough he is blind, he is very fast . . . . . . . . calculations.

43. Do not hanker . . . . . . . . worldly pleasures.

after
about
for
towards

Detailed SolutionDo not hanker . . . . . . . . worldly pleasures.

44. True happiness consists . . . . . . . . giving pleasure to others.

for
by
in
of

Detailed SolutionTrue happiness consists . . . . . . . . giving pleasure to others.

45. While strolling on Janpath, I chanced to meet . . . . . . . . European.

one
a
an
the

Detailed SolutionWhile strolling on Janpath, I chanced to meet . . . . . . . . European.

46. I have lived in Delhi . . . . . . . .

since five years
for five years
five years ago
for five years ago

Detailed SolutionI have lived in Delhi . . . . . . . .

47. A new shop . . . . . . . . opened in the building, since last week.

will be
has been
is
would be

Detailed SolutionA new shop . . . . . . . . opened in the building, since last week.

48. A poor man . . . . . . . . I knew nursed the orphan.

who
whom
that
which

Detailed SolutionA poor man . . . . . . . . I knew nursed the orphan.

49. You must dispense . . . . . . . . his service.

in
at
with
of

Detailed SolutionYou must dispense . . . . . . . . his service.

50. The higher you go, the more difficult it . . . . . . . . to breathe.

has become
becomes
is becoming
became

Detailed SolutionThe higher you go, the more difficult it . . . . . . . . to breathe.