新学期开始，在分配一些劳动任务时，老师常让女生擦桌椅、打扫教室卫生；而让男生搬桌椅、搬运新书。老师之所以这样分配是因为
| A．女同学力气小，只能分配一些轻活 |
| B．男同学不怕苦，有的是力气 |
| C．老师的思想观念比较陈旧，对待男女同学不平等 |
| D．男女同学各自有自己的生理特点，有各自的优势和不足 |
It’s reported that some wild animals were found in a big cave in the mountain.
| A．to hide dead | B．hidden dead | C．hiding dead | D．hidden death |
Some researchers are finding that daydreaming may be important to mental health .Daydreaming ,they say, is good means of relaxation.
| A．the; ／ | B．／; the | C．／; ／ | D．／; a |
—I am so angry that I could blow my top!
—Oh, dear, _______． What’s wrong?
| A．no hurry | B．no wonder | C．take it easy | D．take your time |
Some scientists believe that it won’t be long _______ robots are widely used in all walks of life．
| A．since | B．after | C．before | D．until |
Under no circumstances _______ the difficulties when they were on an expedition to the Antarctic．
| A．they gave way to | B．did they give way to |
| C．they had given way to | D．had they given way to |