he’s only been learning English for a year he speaks it very well.A. ConsideredB. Consid

问题补充：

he’s only been learning English for a year, he speaks it very well.

A. Considered

B. Considering

C. Having considered

D. To consider

答案：

A. Considered

(答案→)B. Considering

C. Having considered

D. To consider

解析：此处considering为连词，意为“考虑到”；它还可用作介词，如：Considering the weather, he arrives very early考虑到天气，他算早的啦。