题目内容：

三大从句单句语法填空

1.We won’t be able to finish the task on time_________we try our best.

2.He was told that it would be at least three months __________ he could recover and return to work.

3.It is shocking that some investment banks even judge candidates on __________ they wear brown shoes.

4.The most pleasant thing of the rainy season is __________ one can be entirely free from dust.

5.Try_________he may, he is not able to persuade his father to give up smoking.

6.___________ difficult problems we may face, we will try our best to fight back.

7.Below is the only idea __________ can help you out.

8.In our factory there are 2,000 workers, two thirds of _________ are women.

9.As a teacher, I never give my students so difficult a problem ________they can’t solve.

10.According to __________ the hotel’s general manager once told us, a trip to the woods is something of a tradition in the area.