The real reason why prices ____ , and still are, too high is complex, and no short discussion can satisfactorily explain this problem.
A person , when_________,can often do what is normally beyond his ability.
Mark needs to learn Chinese ______ his company is opening a branch in Beijing.
The government has been accused of not responding ______ to the needs of the homeless.
A man is being questioned in relation to the _____murder last night.
_______ he didn’t help me with my work. Instead, just _______.