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.
Câu 1: Algebra is the branch of mathematics concerned with operations on sets of numbers or other elements that are often represented at symbols.
A. branch
B. on sets
C. elements
D. at
Câu 2: A conductor uses signals and gestures to let the musicians to know when to play various parts of a composition.
A. uses
B. musicians
C. to know
D. to play
Câu 3: Her absent form work without any permission made the boss so angry that he threatened to sack her.
A. absent
B. permission
C. angry
D. so sack
Câu 4: When a Vietnamese wants to work part-time in Australia, he needs to get a work permission.
A. Vietnamese
B. part-time
C. needs
D. permission
Câu 5: Our neighbor is quite safe because there have not been many crimes recently
A. neighbor
B. safe
C. many
D. recently
A.
B.
C.
D.