—You haven’t got the textbook for my chemistry yet.—I know, and we ________ to get it for the last five weeks.
#100488
A
will have been trying
B
have been trying
C
will be trying
D
had tried
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Millions of pounds’ worth of damage ______ by a storm which swept across the north of England last night.
#99641
A
has been caused
B
had been caused
C
will be caused
D
will have been caused
The computer was invented in the 1940’s and ______ quite a lot ever since.
#100726
A
was changed
B
had changed
C
has been changed
D
will change
 The pen I____ I _____is on my desk, right under my nose.
#104337
A
think; lost
B
thought; had lost
C
think; had lost
D
thought; have lost
I ________ while reading the English textbook. Luckily, my roommate woke me up in time! 
#104783
A
had fallen asleep
B
have fallen asleep
C
fell asleep
D
fall asleep