His father told me that he ____  for the United States three days _______.
#101828
A
has left; ago
B
had left; ago
C
left; ago
D
had left; before
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The woman insisted that she ______ the mobile phone but none of the supermarket guards would believe her.
#99636
A
should not have stolen
B
should not steal
C
not have stolen
D
had not stolen
—You have promised to go ,then why aren’t you getting ready ?—I       you        to go at once .
#102649
A
haven’t realized ;want
B
didn’t realize ;wanted
C
don’t realize ;want
D
don’t realize ;wanted
The political situation in Libya will become even worse unless some measures ______.
#101668
A
will be taken
B
are taken
C
have taken
D
are to take
Great as Newton was, many of his ideas_____today and are being modified by the work of scientists of our time.
#104460
A
are to challenge
B
have challenged
C
are challenging
D
have been challenged