Bài chưa xong mà cứ ngồi cười các pác ợ:)) Mong mn giúp iem@@,đọc kĩ nhớ,sai là em không chọn hay nhất được đâu:v Đánh xong bài này hết cười được luôn ợ:)) Add commas where necessary. Change the adjective clause pronoun to that if possible: 1. The Mississippi River which flows south from Minnesota to the Gulf of Mexico is the major commercial rriver in the United States. 2.A river which is polluted is not safe for swimming. 3. Mr.Brown whose son won the spelling contest is very proud of his son's achievement.The man whose daughter won the science contest is also very pleased and ploud. 4.Goats which were first tamed more than 9,000 years ago in Asia have provided people with milk,meat and wool since prehistoric times. 5.Mrs.Clark has to goats.She's furious at the goat which got on the wrong side of the fence and is eating her flowers.

1. The Mississippi River which flows south from Minnesota to the Gulf of Mexico is the major commercial rriver in the United States.

⇒The Mississippi River that flows south from Minnesota to the Gulf of Mexico is the major commercial river in the United States.

2.A river which is polluted is not safe for swimming.

⇒A river that is polluted is not safe for swimming.

3. Mr.Brown whose son won the spelling contest is very proud of his son's achievement.The man whose daughter won the science contest is also very pleased and ploud.

⇒Mr.Brown,whose son won the spelling contest,is very proud of his son's achievement.The man whose daughter won the science contest is also very pleased and ploud.

4.Goats which were first tamed more than 9,000 years ago in Asia have provided people with milk,meat and wool since prehistoric times.

⇒Goats,which were first tamed more than 9,000 years ago in Asia,have provided people with milk,meat and wool since prehistoric times.

5.Mrs.Clark has two goats.She's furious at the goat that got on the wrong side of the fence and is eating her flowers.