问题
单项选择题
I have no doubt that if the students' interest in the subject is aroused, they will ______ the challenge and commit more of their time and energy to their studies.
A．face up to
B．keep pace with
C．stand out against
D．fall back on
答案
参考答案：A
解析：face up to the challenge“勇敢地面对挑战”；keep pace with“跟上……的步伐”；stand out against“在……的映衬下十分醒目”；fall back on“转而依靠，求助于”。题句意为：“我相信，如果学生对这个问题的兴趣一旦被激发起来，他们就会勇敢地面对挑战并且花费更多的时间和精力去学习。”