题目内容
2.Peter is keen making model planes.He wants to be an engineer.( )| A. | in | B. | on | C. | at | D. | for |
分析 Peter热衷于制作飞机模型,他想成为一个工程师.
解答 答案:B
根据动名词"making"可知,这里考查的是短语"be keen on doing sth 热衷于做某事",故这里应该为介词"on",答案为B
点评 跟"keen"相关的短语有:be keen on doing sth; be keen to do sth.要根据动词的形式判断出所用介词.
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