EX3

1.If you are late again, you will lose the job

2.I didn't see anything because it was dark

3.His parents are happy because he get a good job

4.My dog will always bark if it hears strange sound 

5.She is late for work because she missed the bus

EX4

1.She can't work hard because of her elder

2.He likes her because of her beauty

3.Hecouldn't go to school cecause of his poverty

4.I can't buy this bike because of having no money

5.He broke the vase because of his carelessness

6.He failed the exam because of having not learn the lesson carefully

1.If you are late again, you will lose the job

2.I didn't see anything because it was dark

3.His parents are happy because he get a good job

4.My dog will always bark if it hears strange sound 

5.She is late for work because she missed the bus

1.She can't work hard because of her elder

2.He likes her because of her beauty

3.Hecouldn't go to school cecause of his poverty

4.I can't buy this bike because of having no money

5.He broke the vase because of his carelessness

6.He failed the exam because of having not learn the lesson carefully