Question

Beijing ________ a lot over the years. Now it has become one of the biggest
______ in the world.

A．changes; cities	B．changed; city
C．has changed; cities	D．changed; cities

Answer 1

C

試題分析：句意：這些年北京變化很多。現(xiàn)在它已經(jīng)成為世界最大的城市之一。與時間短語over the years.連用時，用現(xiàn)在完成時。由one of來修飾時，后面用名詞的復(fù)數(shù)形式。故選C。