1.You should apologize for misunderstanding her
2.The company will refund the money, unless you change your mind
3.Tom doesn't understand because he isn't in my place
4.Its raining so we can't go
5. the air will be polluted unless there will be no traffic
6. there will be a shortage of water if it doesnt rain
7.she will be late if she doesn't start at once
8.you are late again so you will lose your job
9.she will miss the train if she doesn't hurry
10.we can't take photos because the weather isn't fine
11.to stop the machine you need to press the botton
12.we can't buy that house because we don't have enough money
13.the fire will go out if noone will put the coal in
14.our grandparent live far away so we don't see them oftenly
15.we won't have to pay more water and electricity bills if we reduce the use
16.he doesn't have enough money so he can't buy the computer
17.you will be tired if you work a lot
18.there is a lot of heart disease because people don't exercise enough
19.the plants will die if you don't water them
20 I can't buy the house because I ain't rich
21.He can't play with the children because he works in the evening
22.I don't have a motorcycle so I can't give you a ride
23.we will be late for the concert if you don't hurry up
24.she lives ver far from school so she goes to school late
25.we can't finish the test on time because it is really difficult
26.he tells lies so people don't trust him
27. she can't come to the party because she is really busy
28.I am not going to the party because I dont have enough money
29.he is lazy so he often gets bad marks
30.you won't finish on time so do it now