___________ the old man spoke very slowly and clearly, I couldn't understand him at all.
A.If
B.Because
C.Since
D.Although

It is raining outside, and David brought his umbrella with him ___________ he wouldn't get wet.
A.so as to
B.in order
C.so that
D.in order to

My brother asked me ___________ of the football match.
A.what do you think
B.what I think
C.what did you think
D.what I thought

He talked as if he ___________ where she was.
A.knew
B.had known
C.would know
D.were knowing

I'll introduce to you the man ___________ support is necessary for your project.
A.who
B.whom
C.that
D.whose

All the guests got dressed in ___________ costume.
A.nation
B.national
C.nationally
D.nationalize

They ___________ all day swimming and sunbathing at the beach.
A.passed
B.used
C.spent
D.occupied

Let your name ___________ in the sheet of paper.
A.to be written
B.be written
C.write
D.being written

___________ quarreled with her boy friend yesterday, she doesn't want to answer his phone call.
A.Having
B.Because having
C.Because hadn't
D.Having not

We didn't ___________ to the station in time to catch the last train.
A.reach
B.get
C.arrive
D.come