There is no simple answer, _____ is often the case in science.
In such weather.Tom prefers ____ at home ____ go out for playing.
I used to be able to play well but I'm _____ now.
She said she was glad the difficulty had been _____.
To get my travelers' checks I had to have the bank _____ a special check for the total amount.
The player was badly_____ in the accident.