Answer:
When he retired I bought not only all his big equipment but all his little toolboxes as well—they were treasures!
Explanation:
I took this quiz. This shows his interest and being willing to invest in it.
The subject-verb agreement rule which is being broken in the sentence above is c<span>ollective subjects functioning as a unit require singular verbs.
The collective subject <em>the crew </em>requires a singular verb, because it denotes a single unit. So, instead of using the verb <em>have visited, </em>it should have been <em>has visited. </em></span>
During the Alaskan Gold Rush thousands of mostly nameless<span> men sought their fortune in a harsh environment and lost</span>