At first ___ , the bag seems made of real leather, butactually it is just an imitation.A．sight B．look C．appearance D．view A【解析】试题分析：考查名词和短语，

We needn’t have worried. Everything ______ all right in the end.

It is no ________ pretending you did not know because everyone saw the whole accident.

John doesn’t work hard at his lesson and feels really nervous with the final exam _________.

They will never succeed, _____ hard they try