You _____ return my dictionary now. You can keep it and I will get it from you later.

Not until ________ in the college entrance exam ________ that he had wasted much time using his mobile phone to surf the Internet and play games.

_ wellprepared a gymnast is, he still needs a lot of luck in performing.

A lot of fish in the river _______ recently, because there is lots of pollution.

The question came up at the meeting ______ we had enough money to do theresearch[ ]