Advertisementsdonotusuallyincreasethetotalnumberofproductssold.
A. 广告并不能增加买入产品的总数量。
B. 广告并不总能增加销售产品的总数量。
C. 广告总是不能增加销售产品的总数量。
D. 广告总是不能增加买入产品的总数量。
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I had asked everyone to submit a brief introduction ahead of time.
A. 我曾要求大家提前把简介提出来。
B. 我以前要求每个人提前提交简介。
C. 我曾要求大家提前把简介提交上来。
D. 我以前要求每个人服从把简介提交上来。
Business trends (趋势) are rapidly ______(identify) by this system.
They spent their weekends in __________ (look after)the old man.
A lot of young people______ (enter) the labor market each year.
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