—It’ s getting dark. Has Mr. Johnson finished        his house?

—I have no idea,but this morning he was painting it.

A．to paint

B．painting

C．having painted

D．to have painted

与我国政府达成双边运输免税安排的国家和地区的单位或者个人，向境内（）提供的国际运输服务免税。

A.单位

B.个人

C.团伙

D.罪犯