I am badly off. If I ______ money, I ______ a large house.
It was not until I reached my apartment building and unlocked the door __________ what the noise had been.
It was not until I came here __________ I realized this place was famous for not only its beauty but also its weather.
The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good __________.
_________ he met with the difficulty did he realize the importance of our help.
Eating too much fat can __________ to heart disease and high blood pressure.