---- Tony, you look puzzled. Have you understood me ?    ---- I’m sorry. I _____ another problem just now.
#99765
A
thought of
B
am thinking of
C
had thought of
D
was thinking of
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 David has got everything ready, _________ it well.
#103138
A
determined to do
B
to be determined to doing
C
determining doing
D
to determine to do
Put on your coat! I _________ you down to the doctor.
#100216
A
have been taking
B
am taking
C
took
D
have taken
The number of historic buildings which ________ has reached a surprising figure that we must be aware of.
#99554
A
has been pulled down
B
had been pulled down
C
is being pulled down
D
have been pulled down