Little creativity was seen in recruitment before.
What does the author want to convey through this passage?
The professor advised the students to________(读更多有教育意义的书).
The greater the population there is in a locality, _____________. (其对水、效能和垃圾处理的需求就会越大)
How much did the cost of paper increase between 1975 and 1990? _______.
Mrs. Smith shut the windows lest________(外面的噪音会影响她儿子的睡眠)