I was terrible at the math. I had(have) just failed a test. And my little cat had(has) just died. I was in low spirit. My math teacher saw this and pulls(pulled) me aside. He told me a time in his life when everything were(was) going wrong. He thought, "That's it! It's over! I'm a loser!" But all that he discovered late(later) was,No. Though life is a river, (加it's) always moving. When you have a lot of bad stuff happened(happen), remember that doesn't mean you will ever(never) succeed. Life is not a dirt(dirty) pond. Fresh water is flowing down from the source and on their(its) way.
Thank you very much for (inviting) me to stay with you in Shanghai during the vacation.I have been looking forward to (seeing) you again so that I need (加入to) get more help from you in my English learning. (But) I am afraid I can not go to your home (去掉in) this summer with them,
because I have (promised) my grandparents, (who) live in the countryside, to spend the summer with them. They miss me (so) much that I find (加
入it) difficult to refuse their request. I plan to visit you in winter if it (加
入is) convenient to you .