帮帮忙中译英（请不要用软件翻译，谢谢）。 就4句，谢谢

1. I extremely liked your last year providing to mine this work. 2. He yesterday afternoon received that letter, stirred his holiday not to have to be peaceful. (Must use spoil this word). 3 on semesters teach us mathematics that teacher went to Guangzhou. 4. You are considering that difficult problem, right?

1.I like the job you gave to me last year very much.
2.He received that letter yesterday afternoon, it spoilt his holiday.
3.The teacher who taught us maths last term went to Guangzhou.
4.You are thinking over that difficult question, are you?

1 I am very like the work which you offered me last year.

2 The letter which he recieved yesterday afternoon spoiled his holiday.

3 The teacher who taught our Maths last term has gone to Guangzhou.

4 You are considering that hard problem, aren't you?

第四句4 . DO you think of this diffcult qustion?