He is internationally known _____ a score of books.A、forB、asC、toD、with

The international situation is very _______ in the

The international situation is very _______ in the

He was _______ the preparation of an international conference when I arrived in Beiji

Doctors have long known that if a patient is ______ that he will recover and is treated wi

He talks as if he______ everything in the world.A．knowsB．knewC．had knownD．would have known

He seemed _______ the secret.A: knowB: to knowC: knowingD: known