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Our office security door is scheduled to _ this week so all staff members are required to return their security cards to the front desk. (A) replace (B) replaced (C) being replaced (D) be replaced 102. The post office will be closed at 5p.m. on Thursday holiday weekend. (A) since (B) due to (C) while (D) as if 103. As we were running short of time, we forced Mr. Owens, the chief technician in charge, to stay and work late by _ | .