—You look rather tired. _______stop to take a rest？

—All right. But I’ll have to work for a few more minutes.

A．Why not

B．Why don’t

C．What about

D．How about

“小小竹排江中流，巍巍青山两岸走”。在这两句诗中，作者在前一句和后一句所选的参考系分别是（）

A.竹排流水

B.流水青山

C.青山河岸

D.河岸竹排