1) it (snow) all day. when will it stop? 2) hi, tom. i (see, not) you for weeks. what (you, do) all this time? 3) i (write) to them three times, but i (get, not) any answer yet. 4) bill (be) here since the 5 of november. 5) i (meet) mrs gordon many times this week. 6) colin, you (miss) already very many classes. 7) i (phone) diana for three hours already, but she is not at home yet. 8) it's 11 p.m. i (work) on the computer since six and i (finish, not) yet. 9) i always (want) to make a four of spain. 10) the telephone (ring) for almost a minute. why doesn't someone answer it?

1) It (has been snowing) all day. When will it stop?

2) Hi, Tom. I (have not seen) you for weeks. What (have you been doing) all this time?

3) I (have written) to them three times, but I (haven't got) any answer yet.

4) Bill (has been) here since the 5th of November.

5) I (have met) Mrs Gordon many times this week.

6) Colin, you (have already missed) very many classes.

7) I (have been phoning) Diana for three hours already, but she is not at home yet.

8) It's 11 p.m. I (have been working) on the computer since six and I (have not finished) yet.

9) I have always (wanted) to make a four of Spain.

10) The telephone (has been ringing) for almost a minute. Why doesn't someone answer it?

1. My sister can read English, but she can not read German. 2.  May I smoke here? 3. Need I pay for these books at once? – No, you needn’t. You may pay for them in a day or two. 4. The lesson is over. We can go home now. 5. May I take your dictionary? – Do, please. 6. Must we translate this article in class? – No, you mustn’t, you’ll do it at home. 7. You should take a cold shower every morning. 8. Shall I come to see you tomorrow at ten o’clock? 9. I have to be at the Institute at eight.

Объяснение:

Dear...,
It was great to get your letter. I'm really sorry that I couldn't answer earlier.
My grandma is much better now, so I hope that soon I'll come back home. If the doctor lets her stay alone, I'll come back on Monday. It was so pleasant to hear that you all are missing me. I'm missing you, too.
It's nice that you are taking karate classes, but as for me I don't find this sport very attractive. I'm really sorry but I don't think I will do karate with you. You know, I prefer less active kind of sport. Playing chess for example. I think we can discuss it when I come back.
My grandmother sends her love to you.
Hope to see you soon.
подпись(своё имя)