一道英语单句题
问题描述：
一道英语单句题
The new programme is said to__ by Mary Davidson ,which is contain to be popular.
A.introduces B.have introduced C.be introduced D.have been introduced
答
C,to后面用动词原形,而这句话显然是被动语态.something be v+ed by somebody,什么通过某人被怎么了.