61阅读

___________________________________________________________ ____________________...

) 6. china is a great country, it __________ 1.3 billion people. a. are b. hasc...

t + a/an + 形容词 + 可数名词单数 （+ 主语 + 谓语）！help sb. (to) do sth What + 形容词 + 名词复数/不可数名词...