【单选题】听力原文:W: Hi, Tom. M: Judy, I haven't seen you in weeks. Where have you been? W: In Florida. M: What, vacationing while the rest of us have been studying on campus in the February cold. W: Not exactly, ...
【简答题】选择方框内所给的单词并用适当形式填空。 Stop live scientist protect animal kind difference open easy wild Years ago, many zoos kept all 1______ of animals in small cages. Small cages made it 2______ for people t...