caused the accident is still a mystery.
–I wonder if Anna is willing to take over the project during your absence— ________, does it?
Different countries have different cultures and laws. You have to be prepared to ______ the change when you move to a new country.
As a journalist, Joan finds _______ worthwhile to spend time chatting with people of different backgrounds and nationalities.
It was a time ________ volunteers from all over the world visited this nursing home regularly.
The new policy, if strictly______, is bound to benefit lots of low-income families