ItisthoughtthatonebillionpeopleItheworld,   ishalfthew...

問題詳情：

 It is thought that one billion people I the world,     is half the word’s workers, earn their living by farming.

A. if    B. that    C. which   D. what

【回答】

B。句中“half the world’s workers”是對“one billion people in the world” 的補充説明， “that is”是 “that is to say”的省略説法，是*入語，that 並不是引導非限制*定語從句的，如果在 “that is”後加個逗號則更清楚，應選

B。

知識點：代詞

題型：選擇題