Choose the best answer: 
Science and technology are the keys............economic and social development.

Choose the best option A, B, C or D to make meaningful sentence: "Please have this luggage taken to my room _____ the porter."

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

__________ I have time, I will go with you.

 Nowadays, Viet Nam doesn’t import many oil products ________ other countries.

A pharmacist’s ethical standards have to be high because he is entrusted to the storage and distribution of dangerous drugs.

Although he was happily married, he preferred spending lately hours at work to spending evenings lately at home.

AIDS can be transmitted by practicing unsafe sex and receive tainted blood from one who is already infected.

Some of the agricultural practices used today is responsible for fostering desertification

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

Mary will have finished all her work__________.

The Medal of Honor is the higher award for military bravery that can be given to any soldier of the United States.

Scuba diving is  usually carried out in the ocean in that people can explore the underwater world.

Choose the best answer

It's unethical to discriminate against people on the basis of their sex.

To remove stains from permanent press clothing, carefully soaking in cold water before washing with a regular detergent.

Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

Some of the famous _____ in Southern Vietnam are Hu Tieu Nam Vang, Bun Mam, fried rice, flour cake, and many kinds of puddings.

Numerous types of cells, such as skin cells and white blood cells, have the power reproduce asexually

Justice is often personified as a blind folded woman to hold a pair of scales.

My brother __________ to join the police forces.

The girls were sorry to had missed the signers when they arrived at the airport

Ocean currents that help transfer heat from the equator to the poles, thereby creating a more balanced global environment.

Before dinosaurs became extinct, plant life is very different on Earth.

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

It's an awful_________ your wife couldn't come. I was looking forward to meeting her.