Question

It will be long　　　she sees Mr. White again at Beijing, 　　　business has just started in Switzerland.

A．a(chǎn)fter; who	B．since; who
C．when; whose	D．before; whose

Answer 1

D

選D。考查復(fù)合句。從題干的所用句型和時(shí)態(tài)可知前部分是句型It will be long before加從句; 逗號(hào)之后是一個(gè)非限制性定語(yǔ)從句, whose business在定語(yǔ)從句中作主語(yǔ), 所以選D項(xiàng)。