Question

     young trees have been planted along the north of China these years.

A．Million of	B．Millions of
C．Several millions	D．Millions

Answer 1

B

解析試題分析：句意：這些年沿著中國北方種植了數百萬棵小樹。表示數百萬時，million要用復數形式，即millions of, 故選B。
考點：考查數詞。