He is ill. I don’t know _______ he will come to school.
If you are free when you _____, I hope you can come to see me.
Mother suggested ________ on a package trip to Guangzhou this summer.
—The news reported that the rainstorm was in the area last night.—Yes. _____ bad weather it was!
The traffic signs warn people____ after drinking.
China is _______ Asian country while Germany is _______ European country.