Customers must file car insurance claims ______ 3 months of the date of service.
A. until
B. up to
C. now that
D. within
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【B14】
A. before
B. after
C. while
D. for
Please mail your loan application form. to Forbes Bank ______ the envelope enclosed with this letter.
A. on
B. at
C. in
D. by
Because Internet security is such a dynamic field, systems that are only a year old may ______ be outdated.
A. already
B. previously
C. promptly
D. lately
【B20】
A. that
B. which
C. whom
D. who