`Ex1:`

`1,`

`>`Because of her younger sister's illness,nhung didn't go to the cinema with her friends

`2,`

`>`The city was strucked and completely of buildings and house were destroyed byb the earthquake

`3,`

`>`By whom this poem was written in the 19th century?

`4,`

`>`If Minh is hardworking,he won't get bad marks

`5,`

`>`Because of his sickness,peter didn't go to school yesterday

`6,`

`>`Because of her tiredness,mary went to bed early

`7,`

`>`Because of her bad cold,she didn't go to the circus with betty

`8,`

`>`If i had much money now,i would buy a house in phu cuong

`9,`

`>`If the light pollution happens,there will be a change in animals' living patterns

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