有关英语的四道题
1 My parents have always made me (feel good) about myself 为什么不能是feel well
2 --Have you know XXX for a long time?
--Yes,since she (joined) the Chinese Soctety 为什么不可以是has joined?
3 I have (looked through) all my papers but I still can't find my notes为什么不能是looked for?
4 If you don't leave ,you'll see the problem (settled)by us 不需要was settled
那个···不好意思，再多问一句，since 后只能加过去式吗？