More than one student____(have)seen the film.

has
你参考下~
more than one 后面是要接单数名词的,虽然意思是“不止一个.”,但若这一结构作主语,其谓语动词要用单数呢!
如：More than one man ( ) me that the plane crashed.
A.has told
B.have told
Ctells
D.tell
在这道题里,more than one man 后接单数的谓语动词.因为虽然意思上表示“不止一个人”,但英语主谓一致要遵循“形式一致”的原则,即形式上是单数的,谓语动词用单数.如：
More than one man is in the room.房间里不止一个人.
类似的还有：“many a +单数名词”,虽然表示“许多……”,但后面也是接单数的谓语动词.如：
Many a boy is under the tree.许多男孩在树下.
故More than one man ( ) me that the plane crashed.
[选A,根据上面所说的,排除B,D,另外,根据意思理解,本题表达的是“不止一个人已经告诉我”,强调对现在的影响,用现在完成时较好.