Chọn từ có cách phát âm khác với các từ còn lại.
A.discuss
B.jump
C.argument
D.public

— “This silver vase is tarnished.” — "in my opinion, it needs_________"
A. to be polish 
B.polishing
C.polished
D.being polished

The police are looking for a man of_____________________ height.
A.medium
B.extra
C.tall
D.special

Please__________________ and see us some time. You're always welcome.
A.come to 
B.come about 
C.come round 
D.come away

___________me to phone them before I go out.
A.Remind
B.Remember
C.Mention
D.make

The discovery was a major______________________ for research workers.
A.breakthrough 
B.breakdown
C.break-in
D.breakout

Nobody knows what the_____________________ of the expiosion was.
A.source
B.cause
C.reaction
D.reason

Several items of_______________________ were found on the river bank.
A.clothes
B.dress
C.costume
D.clothing

He kindly offered to_______________________ me the way to the station.
A.explain
B.direct 
C.describe
D.show

That large dog is perfectly______________________ and has never been known to attack anyone.
A.harming 
B.unharmed
C.harmless
D.harmful