We have done things we ought not to have done and ________ undone things we ought to have done.
#104516
A
left
B
leave
C
will leave
D
leaving
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The milk must be preserved at this temperature until it ____.
#101024
A
will process
B
is processed
C
has processed
D
had been processed
You can’t imagine what great trouble the doctor had ______ the patient.
#103047
A
treats
B
treating
C
to treat
D
treated
— I called you at ten, but there was no reply. —Oh, that was probably when I ________ a shower.
#104755
A
am taking
B
took
C
were to take
D
was taking
Don’t leave the chairs about, or you may ______ them at night.
#99797
A
take over
B
turn over
C
come over
D
trip over
When Peter __________ the car door, he found the key left in his car. So he had to call for help.
#101045
A
opened
B
was opening
C
was to open
D
had opened