Today the number of people whom enjoy winter sports is almost double that of twenty years ago.
Đáp án là B. Trong câu, đại từ quan hệ giữ chức năng làm chủ ngữ.
whom chuyển thành who hoặc that.
Education in many countries is compulsory________the age of 16.
__________ John Kennedy was elected president, he was the youngest American President ever.
The packages___________________ so that it would be easier to carry them.
We all agree that she is____________________ student in our class.
______ his brother, Mike is active and friendly.
As a millionaire who liked to show off her wealth, Mrs. Smith paid______________________________________________ we asked.
He_______________us but he was short of money at the time.
Standing on the tip of the cape,____________________ .
The boat was sailing north when a terrible storm_____________ .
I am sorry I have no time at present to____________________ detail of our plan.