The boy which was given first prize in the contest was very happy.
The boy ( cậu bé này ) là danh từ chỉ người, Do vậy, ta phải sử dụng "who" đại từ quan hệ chỉ người thay cho "which" là đại từ quan hệ chỉ vật.
Đáp án là A.
He_______________us but he was short of money at the time.
The boat was sailing north when a terrible storm_____________ .
Tom: "___________________ " Mike: "I won't say no!"
As a millionaire who liked to show off her wealth, Mrs. Smith paid______________________________________________ we asked.
The pool should not be made so deep______small children can be safe there.
I am sorry I have no time at present to____________________ detail of our plan.
She asked me______I was looking at.
There has been a great increase in retail sales,_____________________ ?
__________ John Kennedy was elected president, he was the youngest American President ever.
______ one of the most beautiful forms of performance art, ballet is a combination of dance and mime performed to music.