Choose the correct answer to the following questions.

Obesity _____ a serious health problem.

How many states are there in _________ USA?

Choose the correct answer to fill in the blank: 

_______ traveling is educational, it can also be stressful and expensive.

The way a child plays with other children reveals a lot about the child’s emotional development .

Choose the best answer to fill in the blank.

Where ____ the 1988 Olympic Games___?

The word “scuba: is actually an acronym that comes of the words “self-contained underwater breathing apparatus”.

Choose the best answer.

When they _____  TV, the electricity _____  out.

Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s).

The President expressed his deep sorrow over the Covid-19 deaths.

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

He likes shopping between 1.00 and 3.00 pm, __________ most people are at home.

UFOs  mean...................... flying objects

The wood of the rosewood tree is used to do time musical instruments.

Use the correct form of the word given in each sentence.

It is __________ that some people poach fish in the Nhieu Loc Canal [disappoint]

The average cat sleeps sixteen hours for a day in short intervals called ‘cat naps.

Despite of many attempts to introduce a universal language, notable Esperanto and Idiom Neutral, the effort has met with very little success

Use the correct form of the word given in each sentence. 

That exchange student can speak English and Spanish____________ . [fluent]

Choose the correct answer. "Computers are speedy enough to help human ______ their task in few seconds."

Choose the correct option A, B, C, or D to complete each sentence.

My sister asked me______ to use the new washing machine.

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

It is a top secret. You___________ tell anyone about it.

I’ll make some sandwiches before I’ll leave for the office in the morning.

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

- Anh: “You haven’t eaten anything since yesterday night. You________ be really hungry!”

- Lan: “I am.”

When a pearl is cut in half and examined under a microscope, but its layers can be seen