,_____ to college means that we canwalk out of the mountains．

(2013·西安模拟)The man we followed suddenly stopped and looked as ifwhether he was going in the right direction.

Some animals like sleep for a long time in cold winter.

I’m sorry to have hurt you, but I didn’t do it________.

celebration of the university’s 100thbirthday, he said, “I have never experienced __________ time here as a graduateof Tsinghua University.”