【正文】
est in the world. At present about 28% of Chinese population __________ ? population作主語時,謂語動詞用單數(shù);但幾分之幾或百分之幾 +of +population作主語時,用復(fù)數(shù)。 is /are equal / equals 。 likes number of people who travel by air ______larger than before. A number of other plants______founded in America. ? the number of +復(fù)數(shù)名詞作主語時,用單數(shù); a number of +復(fù)數(shù)名詞作主語時,用復(fù)數(shù)。 is are he nor I _______