________(51)
A.ages
B.centuries
C.times
D.years

Choose the letter A, B, C or D to show the underlined part that needs correcting.
Because the highway system was built 40 years ago, most of the roads now need to repair.
A.Because
B.was built
C.most of
D.to repair

Choose the letter A, B, C or D to show the underlined part that needs correcting.
The books writing by Mark Twain are very popular in the world.
A.The books
B.writing
C.Mark Twain
D.are

Choose the letter A, B, C or D to show the underlined part that needs correcting.
The Americans agree that a wife should maintain her beautifully after marriage.
A.The Americans
B.a wife
C.maintain
D.beautifully

Schools uniform is compulsory in most of Vietnamese schools.
A.depended
B.required
C.divided
D.paid

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
You should pay attention to _____ precautions of this machine before operating it.
A.safety
B.safely
C.safe
D.unsafe

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
If you are paid monthly, rather than weekly, you receive_________.
A.a prize
B.a reward
C.a salary
D.wages

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
______an Oscar last year, she’s now one of the most powerful movie stars in the film industry.
A.Having won
B.To have won
C.The winning of
D.Just won

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
When ______ to the party, she politely refused.
A.inviting
B.to invite
C.to be invited
D.invited

Math, Vietnamese literature, English are the _______ subjects in national exams.
A.center
B.additional
C.core
D.favourite