—What ______ the taxi drivers in Beijing to take up the study of English?—The successful bid for the 2008 Olympic Games.
–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