These teams, which twenty experienced workers, are working hard here to the time they have lost before.
A. are made up of; make up of
B. are made up of; make up for
C. make up; make up for
D. make up for; make up
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(答案→)A. are made up of; make up of
B. are made up of; make up for
C. make up; make up for
D. make up for; make up
解析:考查短语。be made up of 由…组成;make up化妆,编造,弥补,组成;句意:那些由20个富有经验的工人组成的队伍正在努力工作以弥补以前失去的时间。