July was feeling a little blue because her mother _________ from her job and she had lots of bills to pay. [ ]

We went right round to the west coast by seainstead of driving acrosscontinent。

Only by increasing the number of doctors by 50 percent ________ properly in this hospital. (2013·大纲全国，32)

To our great relief, the exam turned out to be not so difficult as we_______．

These machines can help recycle the waste which would ______be thrown away [ ]