The terrible disease, ______ already kills about one million people each year, has grown resistant ______ standard medicine..
The doctor did __________ he can __________ the boy.
I'll never forget the day __________ we worked together.
We have been caught __________ the rain and are really wet __________ the skin.
Tony was caught __________ at the meeting, which annoyed his boss.
I hate going out alone, so I often ask my friend to __________ me.