(2013·高考四川卷)—Why are your eyes so red You________have slept well last night.—Yeah，I stayed up late writing a report.

I’m just going to finish the work off first.—Go on if you _______.

Sun Tiantian , _______ , is a professional tennis playerfrom Zhengzhou.

37It will not be__________we meet again38

Walking alone in the dark, the boy whistled to ________ his courage.