Tom, you’ve got a "D" in chemistry.____?—Well, I find the subject hard and I think I’ll drop it for history next term.
My neighbour’s dog is fierce and dangerous, so I think he ought to keep it in the yard _____ it attacks any more children.
Many approaches have been _____ to control the spread of the terrible virus “Ebola” so far.
The failure of their friendship was closely related _____ other people’s privacy.
—Will Jane join in our party tonight? —Yes, but I’d rather she _____.
These trees must have been planted three years ago, _____?