I can hardly imagine Peter ______across the Atlantic Ocean in five days.
A. sail     B. to sail     C. sailing     D. to have sailed

I can hardly imagine Peter ______across the Atlantic Ocean in five days.

A.sail  B. to sail C. sailing D. to have sailed

I can hardly imagine Peter ______ across the Atlantic Ocean in five days.

    A. sail               B. sailing           C. to sail      D. to have sailed

I can hardly imagine Peter ____ across the Atlantic Ocean in five days. 

  A. sail   B. to sail   C. sailing   D. to have sailed

173. I can hardly imagine Peter _______ across the Atlantic Ocean in five days.

A. sail                       B. to sail                  C. sailing                  D. has sailed

13.I can hardly imagine Peter ________ across, the Atlantic Ocean in five days.

I can hardly imagine Peter________ across the Atlantic Ocean in five days.

A.sail　　　　　 B.to sail

C.sailing　　　　 D.to have sailed