Be careful how you _____ that jug, it will break very easily.
_____ his research paper, Professor Reagan experienced various hardships and loneliness for nearly half a year.
____ the flight to New York will be delayed is _____ I’m especially worried about.
---Have you finished your composition already, Jack?---Yes, I ____ it within half an hour.
---Can you tell me Sam’s telephone number?---_________.Who is Sam? The newcomer?
The three teams _____ different ways to solve the problem and they all succeeded at last.