Tài liệu Trắc nghiệm tổng hợp trình độ C

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[TD]1. In 1950, a teenager was simply someone _________ between 13 and 19.

old
aged
aging
grown old

​2. A whole series of industries, which were ________ at the teenage market, grew up during the 1950s.
pointed
pinpointed
directed
steered
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