the computers on the table____ Professor smith用belongs to还是 belong to平时该怎么判断呀?

the computers on the table____ Professor smith用belongs to还是 belong to平时该怎么判断呀?
the computers on the table____ Professor smith
用belongs to还是 belong to
平时该怎么判断呀?

the computers on the table____ Professor smith用belongs to还是 belong to平时该怎么判断呀?
belong to
computers 为复数,所以用belong to