–Come on, please give me some ideas about the project.--- Sorry. With so much work _________my mind, I almost break down.

_______ on earth do you suppose_______ this?

It was a pity that the great writer died _______his works unfinished.

Many strange new means of transport have been developed in our century, the strangest of _____ being perhaps the hovercraft(气垫船).

You can use a larger plastic bottle, ____ is cut off, ____ as a pot to grow flowers in.