Mother said we should ____ all our energy on our study.A spend B devote C concentrate D take为什麽?
问题描述：
Mother said we should ____ all our energy on our study.A spend B devote C concentrate D take
为什麽?
答
A
spend on和concentrate on都是固定搭配，而且似乎都说得通
但是concentrate on一般是连用的，中间应该不加东西的
一般说sb concentrate on sth
答
选C,.concentrate...on...把...集中于某事某物。
答
应该是c.spend time/money on sth花时间/金钱在某事某物上.而devote的搭配是devote to 投身于某事.concentrate...on...把...集中于某事某物.而take则没有与on的搭配.根据题意,应选c.
答
A,spend sth. on 是固定短语