The heat in the desert is__________; therefore there are few plants growing there.

 “What a pity! Two thirds of the apples I’ve just bought are ___.” He said.

--Is there anything else that I can do for you?--No, thanks. I am very ______ with what you’ve done for me.

 This kind of exercise is most _______, and therefore is a good test of your students’ ability.

—What do you think of the blind man?—I’ve never seen a man with         sense of touch.