Each student must have/has a copy of dictionary.哪个对?

Each student must have/has a copy of dictionary.哪个对?
Each student must have/has a copy of dictionary.哪个对?

Each student must have/has a copy of dictionary.哪个对?
have,must是情态动词,后面跟动词原形.

have 因为must 后用动词原行

have