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

The biggest city in Brazil is Sao Paulo which population is over 5 million.

River transportation in the United States consists primarily of barges pull by towboats.

Identify the mistake in each sentence: 

Most authorities consider both (A) dreaming while (B) sleep and daydreaming to be (C) forms of fantasy (D).

Find a mistake in the four underlined parts of each sentence and correct it.

Nick asked Phong whether he had gone to Mai’s birthday party last night.

I go to cinema ______ times.

Short-wave radios that can receive and transmit signals are used by pilots, the police, and amateur operator.

Choose the best option A, B, C or D for each sentence:  "Hoa walked home by herself, _______ she knew that it was dangerous."

Choose the correct answer to fill in the blank: 

_______ he tried to fix the machine.

A large percent of Canadian export business is with the United States.

Find the mistake: Yesterday, Minh didn’t want to coming to the theater with them because he had already seen the film.

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

We have to wait___________ everybody else finishes their turn.

Only averaged about 5 feet above sea level, the Marshall Islands would disappear under the Pacific should the Arctic icepack melt

Mark the letter A, B, C or D to indicate the underlined part that needs correcting in each of the following questions.

If you slept under a mosquito net, you weren’t bitten so often.

Choose the best answer: 
The levels of carbon dioxide in the atmosphere have risen ...............the burning of fossil fuels.

For many years, people have wondered that life exits elsewhere in the universe.

Choose the letter A, B, C, D to indicate the correct answer to each of the following questions:

John should pass the exam, _______________?

Choose a suitable word or phrase (marked A, B, C or D) to fill in each blank.

What __________ when it __________all day before?

Because oak trees are highly resistant of storm damage, they usually live a long time

Choose the best answer:

Ann _____ children learn very well, is our math teacher.

If we became rich, we would travel ................ the world.

Choose the underlined word or phrase (A, B, c or D) that needs correcting.

There was an (A) interesting news (B) on the (C) BBC about (D) Academy Award in the