Сложные задания по английскому.помогите,пожалуйста...

1. Fill in: invented, digital, stores, hooked, social, cracked, charge, portable, guarantee, renewable.

1) He's really ...on computer games.
2)John bought a new ...DVD player.
3)He ...all his documents on his laptop.
4)My PDA helps me organise my ...life.
5) The lens on my camera is ...
6)The product is no longer under ...I'm afraid.
7)This comes free of....
8)Faraday ...the electric motor.
9)I want to buy a ...camera.
10)Some resources are not ...

2. Fill in: power, techno, solar, store, social, take, Industrial, picture, electric, alternative.

1)....information
2)....life
3)....message
4)....for granted
5)....power
6)....freak
7)....Revolution
8)....circuit
9)....energy
10)....station

3. Report what these people said.

1) 'The plane leaves at 4 pm.'(she)
2) 'Hand in your essays on Friday.' (the teacher)
3) 'Someone broke in last night and stole our stereo.' (they)
4) 'Don't waste your money on useless gadgets.' (my parents)
5) 'We can't understand where the money has gone.'(the students)
6) 'Wait until the summer before you decide.' (they)

4. Form verbs from the words in brackets.

1) They are going to ...security.(tight)
2) The firm wants to ...its customer base.(wide)
3) It's wise to ...the filing systems. It makes life easier. (computer)
4) The new computer system will ...staff to access accounts quickly. (able)
5) Technicians want to ...the safety o all documents. (sure)

5.a) Fill in: about, on, up, back.

1) Technological advances have brought ...many changes.
2) Too much sun brought ...my headache.
3) She brought ...the books she had borrowed.
4) They were brought ...in the countryside.
5) The photographs brought ...memories of our childhood.

b)Fill in: on, under, out of, at, in.
1) I wasn't sure ...first, but now I love my new camera.
2) I bought a new TV ...pressure and now I'm not sure.
3) Our phone has been ...order for a week.
4) John is always ...the computer these days.
5 I couldn't decide which one to buy so ...the end, I didn't get either.

6. Complete the exchanges.

1. A:Could I exchange this lead for a different one&
B:Of course. That's ...
2. A:Could you check if you have this in stock?
B:Yes,...
3. A:....
B:The strap is broken.
4. A:Would it be possible to speak to the manager?
B:Yes,just....