James can pass the final exam ____ he works hard.

James can pass the final exam ____ he works hard.
A、because
B、since
C、if
D、though
【正确答案】:C
【题目解析】:because 因为;since 自从;if 如果;though 虽然;句意:James 可以通过考试的,______他足够努力。C 符合题意,如果他足够努力的话。