Children in poor areas have _________ time to study.
A. many
B. fewer
C. less
Đáp án: C
Dịch nghĩa: Trẻ em ở khu vực nghèo có ít thời gian học.
Hanoi has _________ skyscrapers than any other cities in the North of Vietnam.
Nowadays, there are _________ local people join in community tourism activities.
Hanoi and Ho Chi Minh city are overcrowded cities in Vietnam, is it?
People in poor countries tend to have _________ access to health services than those in rich countries.