ребята помогите пожалуйста с английским завтра сдавать. ничего не понимаю!
Grammar
1. Decide if the tenses in these sentences are correct or not. If not, correct them.

a. They are talking since 8 o’clock so it must be something important.

b. I have this computer for three years and it works very well.

c. We have seen a lot of films recently and I think “Kill Bill” is the worst.

d. We haven’t talked for ages! How are you?

e. I’ve been patient. I was waiting for six weeks, but I can’t any longer.

f. How many letters have you received so far?

g. When have you seen her?

h. I have cleaned the house since the morning and I haven’t finished yet.

i. We are neighbours for a long time.

a. They have been talking since 8 o’clock so it must be something important.b. I have this computer for three years and it works very well.c. We have seen a lot of films recently and I think “Kill Bill” is the worst.d. We haven’t talked for ages! How are you?e. I’ve been patient. I hane been waiting for six weeks, but I can’t any longer.f. How many letters had you received so far?g. When have you seen her?h. I have  been cleaning the house since the morning and I haven’t finished yet.i. We have been neighbours for a long time.