问题
选择题
It was the building of the rail network from the west to the east coast ________ brought even larger numbers to California in the 1860s.
A．that
B．what
C．how
D．which
答案
答案：A
考查强调句型。强调句型的基本结构为：it is/was 被强调成分that/who 其它成分；其最大的特点是去掉it is/was that/who句子仍然是成立的。本题强调主语the building of the rail network from the west to the east coast。句意：在19世纪60年代，正是从西部到东部沿海的铁路线把更多的人带到了加利福尼亚。