Although the increase in the present sum used for the research is________， a great breakthrough could still be achieved by the end of this year.

I can not think where I’ve left my umbrella; my mind’s completely ________!

It is wise to put milk on a shelf close to the bottom because it is especially _______ to temperature changes

In big cities, some workers from the countryside have been tired of moving around and wish for a more    ______ life.

Jane was so ______ for the news of her lost child that she was almost driven ______.