—I am worried about ____I can enter a good high school or not.
—Take it easy. Believe in yourself!
A. that B. when C. whether D. where
—I am worried about ____I can enter a good high school or not.
—Take it easy. Believe in yourself!
A. that B. when C. whether D. where
C
【解析】
句意：——我担心我能否进入一所好的高中。 ——别紧张。相信你自己！about是介词，后接宾语从句。A. that：当从句是陈述句时，用that引导，that不做任何成分，可省略；B. when什么时候；C. whether是否；D. where哪里。whether引导的从句常可以与连词or或or not直接连用。意为“是否”。故选C。