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. Because (A) the expense of traditional fuels (B) and the concern (C) that they may mn out, many countries have been investigating (D) alternative sources of power. A. because B. traditional fuels C. concern D. been...
Đọc tiếp
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.
Because (A) the expense of traditional fuels (B) and the concern (C) that they may mn out, many countries have been investigating (D) alternative sources of power.
A. because
B. traditional fuels
C. concern
D. been investigating
Đáp án A.
Because → Because of
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