Giúp em với ạ Q27: Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction: This school has built since 1999, so it looks quite old now. A.has built B.since C.looks D.old Q27: Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction: You can’t have a chance to enjoy all these fruits if you were not living in this tropical country. A.can't have B.all these C.were not D.tropical Q28: Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction: Animals who are raised in zoos usually lose their natural instincts. A.who B.are raised C.natural D.instincts Q29: Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction: In my school, garbage is collected and send to recycling factories every day except Sunday. A.In B.is collected C.send D.except Q30: Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction: The teacher was very impressed with my improve in chemistry and physics. A.impressed with B.improve C.chemistry D.physics

Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.

Before the cotton gin had been invented in 1794, American famers had cheap salves remove seeds from the cotton fiber.

A. had been invented

B. had         

C. salves     

D. from 

Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction.

(A) Some studies show that (B) young babies prefer the  (c) smell of milk to (D) those of other liquids.

A. Some studies

B. young babies

C. smell 

D. those