A completely new situation is likely to _____ when the school leaving age is raised to 16.
David is clever and quick at work,he is honoured with the title of model worker.
—— Why does she always ask you for help? —— There is no one else, is there?
Mr. Green has made another wonderful discovery, ______ great importance to science.
It remains whether Jack will be fit enough to play in the final.
The experiment __to be .