摘要：24．We offered these students a summer course , aimed improving their spoken English． A．to B．in C．at D．for
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We offered these students a summer course , aimed _____ improving their spoken English．
A．to B．in C．at D．for
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We offered these students a summer course , aimed _____ improving their spoken English．
A．to B．in C．at D．for
查看习题详情和答案>>
We offered these students a summer course , aimed _____ improving their spoken English．
A．to B．in C．at D．for
查看习题详情和答案>>