When we arrived at the airport, __________.




A.the plane takes off
B.the plane will take off
C.the plane has already taken off
D.the plane had already taken off

In most_______ developed countries, up to 50% of_______ population enters higher education at some time in their lives.




A.__ / __
B.__ /the
C.the/ a
D.the/ __

On _______ he had won the first prize, he jumped for joy.




A.having
B.being told
C.telling
D.he was told

_______ does it take you to go to school? - About half an hour




A.How far
B.How much
C.How long
D.How often

Jane wasn't in when I arrived. I suppose she _______ I was coming.




A.may forget
B.can't have forgotten
C.must have forgotten
D.must forget

It can be inferred from the passage that the author is _______.




A.the manager of a group of telecommuters
B.a reporter
C.a telecommuter
D.a statistician

It can be inferred from the passage that, if a person remembers a piece of information for two days, this information is probably in ______.




A.three phases of memory
B.the long-term memory
C.the sensory memory
D.the short-term memory

The Italian city of Florence is famous _______ its art treasures.




A.with
B.of
C.about
D.for

Are you still upset __________ what I said to you?




A.of
B.out
C.about
D.to

It was a bit careless _________ you to leave the door unlocked.




A.of
B.to
C.about
D.for