Question

Your friendship over the years and your support______ meant a great deal to me. (has/have)​

Answer 1

"has"

Explanation:

• Here the answer is has , because have is uses of words with the pronouns.
• Have is used with indication of a person like I, me, you.
• Has is used with indicate possession of a person.
• Therefore, has comes behind of He, She, They etc.
• Hence ,Your friendship over the years and your support has meant a great deal to me.