Have you any idea ? A. that how we can improve the English level within 4 monthsB. that ho

Have you any idea ?
A. that how we can improve the English level within 4 months
B. that how can we improve the English level within 4 months
C. how can we improve the English level within 4 months
D. how we can improve the English level within 4 months

A. that how we can improve the English level within 4 monthsB. that how can we improve the English level within 4 monthsC. how can we improve the English level within 4 months(答案→)D. how we can improve the English level within 4 months解析：考查同位语从句。A，B多了连词，所以排除；且从句要用陈述语气，所以选D。

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