1, I don't buy it because I don't have enough mony
--> If I
2,I am busy now, so I can't help you
--> If
3, There will be a shortage of water unless it rains
--> If
4, John is fat because she eat many chips
--> If she
5, I'll only help you if you promise to try harder
--> Unless
6, If I doesn't rain soon , the crops will be lost
--> Unless
7, I am very tired so I can't concertrate properly
--> If
8, We don't have a garden, so we don't grow our own vegetables
--> If
9,He doesn't give you good advice because he isn't your true friend
--> If
10, We come late because the rain is so heavy
--> If
11, You don't get better marks because you don't study harder
--> If
12, She is very busy so she can't go out tonight
--> If
13, I don't know anything about her background, so I can't tell you
--> If
14, I wasn't hungry so I didn't feel like eating
--> If
15, She's so shy, that why she doesn't have many friends
--> If
16, I remembered Susan's birthday only because you reminded me about it
--> If
17, The car in front stopped so suddenly, so I crashed into its back
--> If
18, They painted the wall brown, that's why the house looked very dark
--> If
19, My brother will have enough money. He will buy a bicycle
--> If
20, I'll buy a new hat. I'll give it to you
--> If
21, You'll ask the teacher. He'll explain the lesson to you
--> If
22, I don't have enough money. I can't go on a long holiday this year
--> If
23, I don't haave a typewriter. I can't type it myself
--> If
24, I don't live in a big city, so I can't go to the cinema very often
--> If
25, Lan doesn't have a bike, she walk to school
--> If
26, He didn't hungry, so he missed the rain
--> If
27, We canceled our picnic because it rained very hard yesterday
--> If
1) Because I am sick, I don't want to go out.
→ Because of my sickness, I do not go out.
2) Because the water is polluted, we cannot swim in this river.
→ Because of the polluted water, we can't swim in that river.
3) Because Na has a sore leg, she has difficulty in walking.
→ Because of a sore leg, she has difficulty in walking.
4) Because he behaved badly, he found himself in trouble.
→ Because of his bad behaviour, he found himself in trouble.
5) Because it was snowing, we didn't go out for a walk.
→ Because of snowing, we didn't go out for a walk.
6) Because of his serious sickness, he couldn't come to class.
→ Because he has a serious sick, he couldn't come to the class.
7) Because of your advice, we didn't use that poisonous chemical.
→ Because you advised us, we didn't use that poisonous chemical.
8) Because of their good performance, they won that match.
→ Because they performed well, they won the first prize.
9) Because of his good looks, he is popular with many girls.
→ Because he is good looking, he is popular with many girls.
10) Because of too much exhaust fume, people have to wear gauze masks in the streets.
→ Because there is so much exhaust fume, people have to wear gauze masks in the street.