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

(A) Before the invention of (B) the printing press, books (C) have been all printed (D) by hand.

A. Before 

B. the printing 

C. have been

D. by hand

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 (from 30 to 34)

The tree that was struck by (A) lightning had been (B) the tallest of (C) the two trees we had (D) in the yard

A. struck by

B. had been

C. the tallest of

D. had

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

The assumption that smoking has bad effects on our health have been proved. 

A. effects 

B. have been proved 

C. smoking 

D. on