I’m frustrated after so many failures. I can’t see any hope.—Behind every misfortune ________!

English is___ useful language because people in many countries are using it.

I’d like to go to the cinema with you, Dad.— Sorry, my darling, but the film is ___________for adults only.

The number of people present at themeeting_________about 1000 , a large number ofwhom _______ experts from abroad.

ct , the hazy weather problem is so severe now that it has aroused __________ nationwide concern about __________ environmental pollution .