问题
选择题
_______ is often the case, we have worked out the production plan.
A．Which
B．When
C．What
D．As
答案
D
此题考查as位于句首引导定语从句的用法。as 可引导非限制性定语从句，指代其前面或后面的整个句子，而which只能指代前句，不能用于句首。
搜题请搜索小程序“爱下问搜题”
_______ is often the case, we have worked out the production plan.
A．Which
B．When
C．What
D．As
D
此题考查as位于句首引导定语从句的用法。as 可引导非限制性定语从句，指代其前面或后面的整个句子，而which只能指代前句，不能用于句首。