from John, ____ gave me a big key to _____ mydad.

There is ________ with your computer. It works well.

Experts are trying to work out a plan to deal with the problems caused by global warming ______ it is too late

mes in summer, when ______ sun is rising, youcan still see ______ clear moon hanging in the sky.

下列各句中，没有语病的一项是（ ）