高等教育 / 大学英语（四）
The government official can hardly find sufficient grounds _ _ _ _ his arguments in favor of the revision of the tax law.
(A) on which to base
(B) which to be based on
(C) to base on which
(D) on which to be based
(A) on which to base
(B) which to be based on
(C) to base on which
(D) on which to be based
参考答案：
佳题速递：