Đáp án nào sau đây đúng khi nói về đồng hóa và dị hóa?
A.Đều xảy ra sự tổng hợp các chất.
B.Đối lập nhau.
C.Đều xảy ra sự tích lũy năng nượng.
D.Mâu thuẫn nhau.

Choose the answer among A, B, C, D to complete each of the sentences below:
It is illegal to ________ on grounds of race, sex or religion.
A.differ
B.differentiate
C.discriminate
D.certify

Choose the answer among A, B, C, D to complete each of the sentences below:
Many African and Asian nations have set aside land called _____ to protects the habitats of elephants and other wild animals.
A.reserves
B.species
C.forest
D.wildlife

Choose the answer among A, B, C, D to complete each of the sentences below:
The rapid growth of population led to an acute _______ of housing.
A.shortage
B.shortfall
C.shortcut
D.shortcoming

Choose the answer among A, B, C, D to complete each of the sentences below:
We usually do go by train, even though the car___is a lot quicker.
A.voyage
B.trip
C.travel
D.journey

Choose the answer among A, B, C, D to complete each of the sentences below:
When someone is down on their ____, friends are not easy to find.
A.luck
B.mood
C.fortune
D.merit

Choose the word or phrase A, B, C or D that best completes the sentence or substitutes for the underlined word or phrase.
The Great Wall is China's most popular ______.
A.attraction
B.contribution
C.construction
D.impression

Choose the answer among A, B, C, D to complete each of the sentences below:
The babysitter has told Billy’s parents about his ____ behavior and how he starts acting act as soon as they leave home.
A.attention – seeking
B.concentration – seeking
C.focus – seeking
D.meditation – seeking

Choose the answer among A, B, C, D to complete each of the sentences below:
The students were asked to ______ reading and writing skills to the villagers.
A.express
B.support
C.deliver
D.provide

Choose the answer among A, B, C, D to complete each of the sentences below:
The story about the alien spaceship was _______ to have been invented by jounalists.
A.suggested
B.believed
C.announced
D.recommended.