问题
选择题
_______ she was standing and waiting for a bus that she caught sight of the former President Clinton.
A．It was while
B．As soon as
C．While
D．During the time when
答案
答案：A
这题考查强调句，强调的是while she was standing and waiting for a bus，句意是：就是在她站在那里等公共汽车的时候她看见了前总统克林顿选A。