can be done been done. A. All;haveB. All that; haveC. All; hasD. All that; has

问题补充：

can be done been done.

A. All;have

B. All that; have

C. All; has

D. All that; has

答案：

A. All;have

B. All that; have

C. All; has

(答案→)D. All that; has

解析： all that=what，AC排除。what作主语表整体，后面用has 选D