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.
Câu 1: The machine can turn on by pressing this switch.


A. machine                            


B. this switch  


C. can turn     


D. pressing
Câu 2: The larger the room is, more people can sit in it.


A. is                                      


B. came                               


C. The larger  


D. more people
Câu 3: Books in the home are a wonder source of knowledge and pleasure.


A. in the home 


B. of                                   


C. a wonder source       


D. knowledge and pleasure

A.
B.
C.
D.

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