______ earthquake on March 11th was ______ terribledisaster, making thousands of Japanese homeless.

So hard _____ in the past few months that he has made great progress in English.—I can see that; only a few mistakes _____ in the exam.

．Life is too short to waste and too ________ to give up.

Can you come to my birthday party–Sure, _____ .

The nurse won’t leave her patients ______she’s sure they are all taken good care of．