He pushed the door again and again, but it ___ open.

But for the fact that China   also affected by the global financial crisis, we      fewer unemployed workers now.

—It’s eight o’clock already. Jack      be here by now.—Oh, he told me that he was going to see his dentist and wouldn’t be back until ten.

Everyone _____ do his best for the modernizations of our country.

-- It’s many years since I saw you last； I _____ you at all.--- I wouldn’t have, either, if someone ______ you by the name.