单项选择题
My Deratization Exemption Certificate will（）by the end of this month.
A.become due B.become valid C.become lawful D.become effective
单项选择题 My camera can be（）to take pictures in cloudy or sunny conditions.
单项选择题 My anchor is clear（）the bottom.
单项选择题 MV Utopia may conduct the following operations to stop listing except to（）.
