【题目】David said that it was because of his strong interest in literature ________he chose the course.
A.that
B.what
C.why
D.how

【答案】A
【解析】句意： David说他选择这门课程是因为他对文学的强烈兴趣。此句考察强调句型，强调状语because of his strong interest in literature。所以答案是A。