ребята помогите англ яз.Write the verbs in the past forms

Помогите плиз с английским!!! Очень срочно!! Вся надежда тольо на вас))
open th brackets using an appropriate Future-tense-form where necessary.
1) i (take) my sun-glass in case it is sunny.
2. I don't think I can join you because my aunt and uncle (stay) with us this weekend.
3. You don't work in class! I (phone) your mother about this.
4. I (watch) television from eight o'clock to midnight.
5. When you (repair) my bike, Daddy?-I (do) it tomorrow if I have time.
6. It's so crowded iin here. I think, I (faint).-I (take) you outside for a while.
7. I din't know when the concert (be) over.
8. If he doesn't come I (be) upset.
9. B the end of the summer he (teach) m to work with the computer.
10. Have a good time in Italy!-Thanks. I (send) you a postcard.
11. I think you (like) Nick when you met him.
12. I (cook) spaghetti in case you get hungry.
13. I feel terrible. I think I (have) to go to bed.

эксплуатации неким "чудолазером". С 90% задания я справился, но 1 часть текста осталась для меня воистину загадкой. Поэтому прошу помощи у магистров знаний.

Собственно, сам текст:

The CL40 C02 laser surgical system (for short as laser) adopts sealed off type CO2 laser. The output of laser is the unseen infrared. The characteristic is both good direction and high energy density.

When the laser sent by this instument through guiding light joint arm and the laser beam sent by focus lens, the high temperature which produced by the focus spot can gasify the target organ, cut cautery and freezed the target organ. When the laser sent without through the focus lens and the lower energy destiny. The instrument can also do coagulation operaion thenthe laser beam sent bu expanding beam lens and the energy density is much lower.

Если первый абзац более менее мне понятен, хотя выражение adopts sealed off тоже вводит меня в некий диссонанс, то дальше я теряю нить перевода и получается нечто страшное и нечитаемое.

Заранее благодарю.

Нужно сочинить 5-10 простых предложения на Present Simple.

Today ____ (be) Sunday. My sister ______ (paint) a picture at the moment. My brothers ______(ride) their bicycles in the garden now. They ______ (wear) their new jackets. I often ______(read) a book on Sundays, but today I ____ (write) a letter to my cousin, Anne. She often ____(send) me letters. Anne ____ (want) to be a doctor. Sometimes my mother ______ (ask) me whatI ____ (want) to be, but I ____ (not / know)


b) Write the 3 forms of the verbs in breackets.

I (to be tired) already. I feel I’ll die!

A) Am tired

B) Will
tired

C) Has tired

D) Will be

E) Was
Ex.3. Give the correct form of the verb in brackets.

to write . Example :Teacher : Say the verbs in the Past Simple . Think . Group A : Thought . Teacher : Correct . Group A gets a point .

compo­sition atthree o'clock. It is already eleven, and he still (to write) it. He says he (to finish) it by twelve.

2. We (to help) our librarian to put the books in the right order for three days already, but we (to arrange) only half the books.

3. What you (to do) when I (to come) in?

4. When I (to come) to his house, they (to tell) me that he (to leave) an hour before.

5. On check­ing up his answers, he (to find) out that he (to make) several mistakes.

6. When I (to leave) home, the snow already (to stop), but a strong wind (to blow).

7. You (to read) this book? — Yes, I (to read) it. I (to think) it (to be) very interesting.

8. What the children (to do) now? — Oh, they (to play) the new board game which I just (to buy) for them.

9. They (to reach) the corner of the street by now and (to stand) at the bus stop.

10. After we (to walk) about two hours, we arrived at a picturesque glade covered with fresh grass.

2. Translate the sentences into Russian:

Я уже две недели живу у друзей.

Я уже две недели жил у друзей, когда получил письмо.Сколько дней вы уже читаете эту книгу?