--- You should be careful when ________.
--- Yes, I will. I’d like to know when ________ to have a rest.
A.driving; stopping | B.driving; to stop |
C.to drive; stopping | D.to drive; to stop |
--- You should be careful when ________.
--- Yes, I will. I’d like to know when ________ to have a rest.
A.driving; stopping | B.driving; to stop |
C.to drive; stopping | D.to drive; to stop |