31: That's the course of studies _____________. I'm interested in what I'm interested on I'm interested on what I'm interested in 32: He came to the party, ____

31: That's the course of studies _____________.
I'm interested in
what I'm interested on
I'm interested on
what I'm interested in

32: He came to the party, ______ he hadn't been invited.
in case
even
in spite of
although

33: He stayed under water for two minutes and then swam to the _______
sea
level
surface
ground

34: We were in the station for at least half an hour, waiting ________ start.
for the train
the train to
the train's
for the train to

35: Everyone in the factory has to be __________ by 8 o'clock.
at work
in job
in work
at job

36: I _________ you before now but I've been too busy.
must have rung
should have rung
had to ring
ought to ring

37: Dinner will be ready _____ but we have time for a drink before then.
currently
lately
suddenly
presently

38: 100 competitors had _________ the race.
taken part
entered for
put themselves for
put their names for

39: I never expected you to turn ______ at the meeting. I thought you were abroad.
in
around
up
on

40: She was wearing _____________ beautiful clothes that I envied her.
a so
so
such
such a

41: I crossed the room and ______ a light shone through the window.
while doing like that
as I did like that
as I did so
at doing so

42: I'll ask the waiter for the bill when you __________ your coffee.
will have finished
will finish
have finished
shall finish

43: He ________ out of the window for a moment and then went on working.
regarded
glanced
viewed
glimpsed

44: Our main concern is to raise the voters' _______of living.
condition
standard
capacity
degree

45: He reminds me ____ someone I knew in the army.
of
to
from
with

46: I daren't ______ to upset her.
do anything
to do something
do nothing
to do a thing

47: I _________ you that the goods will be delivered next week.
confirm
undergo
assure
insist

48: We can never relax in this office. The problems are continually _________.
coming out
coming up
raising
presenting

49: Hot metal _____ as it grows cooler.
contracts
compresses
reduces
condenses

50: I'm sorry to _________ you while you're working but I must ask you a question.
molest
bother
interfere
intrude