22. Food aid______ is the key to______ the problem _______ now.
Since the general retired from the army, he __________ himself in writing his memories.
—Yao Ming and Yi Jianlian have finished their season in NBA this year.—Yes, they __________ better but for the injuries.
—Have you completed the project?—I'm sorry to tell you we __________ it when we found it cost too much.
—I can't stand Tom any more. He's lazy, selfish and...— __________ He isn't so bad actually.
In preparing scientific reports of laboratory experiments, a student should __________ his findings in clear languages.