Đáp án D
Kiến thức: Cấu trúc câu
Giải thích:
Với các mệnh đề chứa liên từ thời gian ( when, after, before, while,…) mang nghĩa bị động thì có thể rút gọn câu bằng cách bỏ chủ ngữ và chuyển động từ sang dạng quá khứ phân từ ( P2).
Chú ý: chỉ áp dụng với 2 mệnh đề cùng chủ ngữ
Is exposed => exposed
Tạm dịch: Natri tinh khiết ngay lập tức kết hợp với oxy khi tiếp xúc với không khí.
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.
Alike (A) oxygen, which is chemically (B) changed by our bodies into carbon dioxide, nitrogen is merely (C) exhaled back into (D) the air.
A. alike
B. chemically
C. merely
D. into
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.
The air that surrounds our planet is both odourless, colourless, and invisible.
A. The air
B. our planet
C. both odourless
D. invisible
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.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
We planned to visit Ba Na Hills in the afternoon. We could not afford the fee, however.
A. As planned, we could not afford the visit to Ba Na Hills in the afternoon because of the fee.
B. We visited Ba Na Hills in the afternoon though the fee was too high for us.
C. We were going to visit Ba Na Hills in the afternoon, but the fee was too high for us.
D. The fee was, however, high enough for us to plan a visit to Ba Na Hills in the afternoon.
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
The earth is (A) the only planet with a large (B) number of (C) oxygen in (D) its atmosphere.
A. the
B. number
C. oxygen
D. its
Mark the letter A,B,C or D on our answer sheet to indicate the underlined part that needs correction in each of the following questions.
Alike oxygen, which is chemically changed by our bodies into carbon dioxide, nitrogen is merely exhaled back into the air.
A. alike
B. chemically
C. merely
D. into
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
The Earth is the only planet with a large number of oxygen in its atmosphere.
A. the
B. a large number
C. oxygen
D. its
Mark the letter A, B, C or B on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
The earth is (A) the only planet with a large (B) number of (C) oxygen in (D) its atmosphere.
A. the
B. number
C. oxygen
D. its
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
A mosquito (A) is filled with blood (B) is carrying (C) twice its own body (D) weight
A. is filled
B. is carrying
C. twice
D. weight
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.
Air pollution, together (A) with littering, (B) are causing (C) many problems (D)
A. with
B. are
C. many
D. problems
