He is one of the world-famous musicians. By the time he was six, he ______ compo

题型：不详难度：来源：

He is one of the world-famous musicians. By the time he was six, he ______ composing.

A．had begun

B．begins

C．would begin

D．was beginning

答案

解析

试题分析：考查谓语动词的时态 by +过去时间，谓语动词（主句）常用过去完成时态；by+将来时间，谓语动词（主句）常用将来完成时态

举一反三

Jumping out of ________ airplane at ten thousand feet is quite ________ exciting experience.

A．an; an

B．/; the

C．/; an

D．the; the

题型：不详难度：| 查看答案

I can’t remember when turning point occurred exactly, but it might be summer morning when I was in New York.

A．不填；a

B．a; a

C．the; a

D．a; the

题型：不详难度：| 查看答案

_______ part that vocabulary plays in learning _______ foreign language should never be ignored.

A．The; /

B．A; /

C．The; a

D．A; the

题型：不详难度：| 查看答案

When the spaceship traveled above，______new looking earth appeared before us，______earth that we had never seen before.

A．a；the

B．the；an

C．/；the

D．a；an

题型：不详难度：| 查看答案

Guangzhou Evergrande FC has made _____ progress this season and as _____ result it has won the national champion.

A．/; a

B．a; a

C．a; the

D．/; /

题型：不详难度：| 查看答案