This one: "Lee noticed a problem and alerts a teacher".
The second verb should not have been changed to present tense.
You should change the verb alert to past tense: "Lee noticed a problem and alerted a teacher".
The right choice would be C. We; subject. Because we is the action of donating.
Good luck!!
Depends on what homework it is. We must find the answer either by asking the teacher, our parents or even use the internet.
It means that he didn't talk to him or contact him much and weren't in a good father-son relationship
