Chọn B.
Đáp án B. did => made
Cấu trúc cố định: make a contribution to...: đóng góp vào
Dịch: Ống chân không đã đóng góp quan trọng cho sự phát triển ban đầu của đài phát thanh và truyền hình.
Chọn B.
Đáp án B. did => made
Cấu trúc cố định: make a contribution to...: đóng góp vào
Dịch: Ống chân không đã đóng góp quan trọng cho sự phát triển ban đầu của đài phát thanh và truyền hình.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that superstition needs correction in each of the following questions
In the early 1900's, Pennsylvania's industries grew rapidly, a growth sometimes accompanied by disputes labor
A. industries
B. growth sometimes
C. accompanied
D. disputes labor
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) Seldom (B) did her classmates and she (C) went on a picnic (D) together
A. Seldom
B. did her
C. went
D. together
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.
When (A) you lived in (B) Miami, did you (C) use to going (D) to the beach?
A. When
B. in
C. did you
D. going
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 underlined part that needs correction in each of the following questions.
Hardly he had graduated from Vietnam Naval Academy when he joined Vietnam Coast Guard.
A. he had
B. graduated from
C. when
D. joined
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 world is becoming more (A) industrialized and the number of animal (B) species that have becoming (C) extinct (D) have increased. Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
A. industrialized
B. species
C. extinct
D. have
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.
It is important that cancer is (A) diagnosed and treated as early as possible (B) in order to assure (C) a successful cure (D).
A. is
B. as early as possible
C. assure
D. cure
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.
They asked me (A)how long (B) did it take to (C) get to Paris (D) by train.
A. how long
B. did it take
C. get to
D. by train
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.
Don’t go up to your hotel room because the maid is making the beds, cleaning the bathroom, and vacuum the carpet.
A. Don’t go
B. because
C. cleaning
D. vacuum
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.
His father (A) asked him (B) what (C) did he want (D) for his birthday.
A. asked
B. what
C. did he want
D. for his birthday