The foreigner tried his best but he still couldnt make his point .A. understandB. under

问题补充：

The foreigner tried his best, but he still couldn make his point .

A. understand

B. understanding

C. to understand

D. understood

答案：

A. understand

B. understanding

C. to understand

(答案→)D. understood

解析： make sth. done表示“使……被……”。