if to unless conversion
1.- if nobody helps me, i’ll get into trouble.
i’ll get into trouble unless somebody helps me.
2.- i won’t know anything about my friends if they don’t write to me.
3.- they wouldn’t have bothered you if they hadn’t needed your help.
4.- if there isn’t a traffic jam, we’ll be home by five o’clock.
5.- people don’t go to the doctor if they aren’t ill
6.- i’ll punish you if you don’t tell me the truth
7.- they won’t invite you to their party if they don’t know your phone number.
8.- they won’t give you the job if they don’t like your appearance.
9.- if you don’t finish your homework now, i won’t let you watch tv.
10.- i won’t phone you if there isn’t anything urgent.
11.- i wouldn’t invest all this money if i weren’t sure i would get it back.
12.- if you don’t get up early, you’ll miss your train.
13.- i wouldn’t have asked him any questions if he hadn’t been ready to answer them.
14.- we won’t go fishing if the weather isn’t fine.
15.- i won’t ask him to write if he doesn’t want to.
16.- i never hitch-hike if it isn’t absolutely necessary.
17.- if i don’t know anything about him in two days, i’ll report his disappearance to the
police.
18.- she wouldn’t save any money if she didn’t want to buy a house of her own.

Задание:

Margaret is washing the dishes, (to sweep the floor) —

The days are getting shorter, (to get longer)

My Granny isn't reading a magazine, (to watch TV) +

My friend and me are sunbathing, (to swim) -

The kitten isn't sleeping, (to play) +

Greg and his boss aren't having lunch, (to read a report) +

Cliff and Julia are preparing for the test, (to dance at the

disco) -

1) Margaret is not washing the dishes, she is sweeping the floor.

2) The days aren't getting shorter, they are getting longer.

3) My Granny isn't reading a magazine, she is watching TV.

4) My friend and me aren't sunbathing, we are swimming.

5) The kitten isn't sleeping, it is playing.

6) Greg and his boss aren't having lunch, they are reading a report.

7) Cliff and Julia aren't preparing for the test,

they are dancing at the disco.

Объяснение:

Я точно не знаю, правильно ли сделала, самого условия нету, но я думаю так правильно.

1) Could you translate this text?

2) This book can be bought at any store.

3) He could have done it last week - he wasn't particularly busy.

4) He could not show us the calculations because they were not ready.

5) It cannot be that she was mistaken.

6) Have they been waiting for us all this time?

7) It cannot be that you were sent to me - I have nothing to do with this.

8) I was amazed at his youth - it can't be that he was much (?? or a little ??) more than 30.

9) Can I have a cup of tea?

10) He said we can go.

11) I can't help but think that she made a big mistake.

12) I could not help but notice that she was sick.

13) I have no choice but to ask him for help.

14) I had no choice but to ask him to stay.