.If you ________ be quiet, I will tell you what happened. 

The boy student is poor in health now; his parents wish that his health _____when he grows up

 I ______________ have passed my examination easily，but I made too many stupid mistakes．

________ the present unemployment continue, the society would face a more troublesome situation.

Jane’s pale face suggested that she    ill and her mother suggested that she be sent to hospitalwithout delay.