You’d better take something to read when you go to see the doctor _____ you have to wait.
—Did the naughty boy break the glass by chance? —No, ______.
They______ with each other for two years before they got married.
It has something to do with the part electricity ______ in our life.
After graduation he took all his works to London ______ get a good job there.
As soon as the crew(船员) were attacked, the police______ to look into the matter.