问题
选择题
____ to light for a long time, the potatoes turned green.
A．Introduced to
B．Exposed to
C．Linked to
D．Connected to
答案
答案：B
考查短语辨析。Introduced to介绍给，Exposed to暴露于，Linked to 联系，. Connected to与什么联系。句意：长时间暴露于光下，土豆会变绿。所以选B。