. I have taught hundreds of students,___________ having been working in their fields for years.
How did it ______ that the young guy fell off the bridge into the river?
— What do you think of Tom? — He is quite good-tempered, but I can’t ______ his bad habit of smoking.
Generally, the electric-bike is not dangerous as ______, if ______ according to the instructions.
______ for the free tickets, I would not have gone to “Avatar” three times.
Daddy didn’t mind what we were doing, ______ we were together, ______ fun..