1. David said that it was because of his strong interest in literature ______ he chose the course.
A. that B. what C. why D. how
2. How much did the repairman ______ you for repairing your bike?
A. pay B. take C. cost D. charge
3. Last month, part of South China was struck by floods, from ________ effects the people are still suffering
A. that B. whose
C. those D. what
