1.She felt depressed because ________________________(她充分意识到孩子们再也回不来了)。
2.It is quite strange that ______________________(无论他说什么、做什么都被认为是对的)。
3._________________________(化学老师从学生中随便叫了几个人)and asked them to help him do the experiment.
4.Having lived in the south for many years,________________________(一些人却仍然不适应那里既炎热又潮湿的天气)。
5.Not before in our history______________________(这么多强烈的影响共同导致产生这样的的灾难)。