________all her efforts,she failed the College Entrance Examination[ ]

The workers in the Huashan Mountainshave to rubbish to keep themountains clean.

Mr Black is a careful and experienced worker, so he is often to finish some challenging tasks. [ ]

you like to go to the shopping mall with metonight —I’d like to, but I have to attend a lecture _______in the school library

There are so many problems. I’m so afraid. — You should try to ______your shyness first. You’renot a child any more.