There exists more than 2,600 different varieties of palm trees, with varying flowers, leaves, and fruits.

That he take this course _    very certain.

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

________ domestic and foreign tourism will create demand for additional hotels and motels.

Do you think that Hue Imperial is ___________ preserved?

In a medical study of nearly 5.000 adults, half of them were given one aspirin a day and the other half given a placebo, it was found that those taking Aspirin suffered 38 percent fewer heart attacks than those who weren’t.

Each chemical element is characterized to the number of protons that an atom of that element contains, called its atomic number.

It is believed that the more frequent you exercise, the greater physical endurance you will have.

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

In Binh Ba Island (Lobster Island), there are many beautiful beaches with white sand, clear water, blue sky, which is _________ for those who love nature and calmness.

Find the ONE among the underlined and marked A, B, C, D in each of the following sentences that needs correcting:

Mai has such many things to do that she has no time to go out.

In the sixteenth century, Francois Vieta, a French mathematician, used the vowels “a”, “e”, “i”, “o”, “u” to represent a unknown number.

Julie’s mother abandoned her when she was a few of months old and she grew up in an orphanage.

Choose the best option A, B, C or D to make meaningful sentence: "Could you tell me the way____ the post office, sir?"

Each of the luxury cars in the showroom was quickly sold to their new owner.

Choose the best answer: 
Ha Noi City now is _________ it was 10 years ago.
 

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

He went on working__________ feeling unwell.

Nobody bothered with telling me that the school had decided to have a special holiday on Friday.

Some birds can travel at speeds approaching one hundred miles an hour, and a few land animals can so.

All almost the electricity for industrial use comes from large generators driven by steam turbines

We have rented two videos and watched them with some friends last night.

The professor is thinking to go to the conference on conservation next month

A healthy person snores most because the membrane in the nose becomes dry.