哪个大神小哥哥小姐姐可以帮我解答问题吗，帮我解释每道题为什么要这样改。 谢谢~

Question

路过的小哥哥小姐姐帮帮我把~
1) The trees stand nearly barren; their leaves lay on the ground. （lay-lie）
2) The actor opened the Bible and begins reading the Song of Solomon.（opened-opens）
3) The Puritans were in some ways severe, but they lead lives of deep devotion to what they believed. (lead-led)

4) That experience taught me that family ties were the most enduring.( were-are)
5) When their party came back to the camp site, ours arrived two hours earlier. (had already arrived)
6) It seemed a long time since we last met.(seemed-seems)
7) Sherry flew home, but her grandfather died. (had already died)
8) I'lI visit you whenever I will get the chance. (去掉 will）
9) His mother insists that he returns now. （returns-return）
10) If Siberia is in a warmer region, its population would be larger. (is-were)
11) That bell sounds as though it is cracked (is-were）
12) It is important that he finds a suitable job. (finds-find）

Answer 1

都不悬赏，怎么做任务