As we all know, playing chess is usually one-to-one game.

All through history, big changes have taken place in ________ English language, especially when Henry IV became ________ King of England.

I’ve tried hard to improve my English.But by no means ________with my progress.

The president hopes that the people will be better off when he quits than when he ________.[ ]

How long is it ______ you picked up your badminton training?—It was not until my finance became better last December _____ I started the training.