Chọn đáp án đúng để hoàn thành các câu sau:

The Sears Tower is _______ building in Chicago.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks. 
The first thing that is included in the "living together” (23) ______ is the expected good relations with your family. This also involves sharing equally the housework. Lots of people think that everyone should share the housework (24) ________, but in many homes parents do most of it. To certain minds, many families can't share the housework whereas they should try it. In fact, sharing the housework equally is not very possible because of the families' timetable. So, it is somehow believed that children and parents must do things together. For this they can establish a housework planning.
(25)_________, housework's contributions of the teenager make him more responsible. He will think that he has an important role in his family. According to researchers, teenagers should share the housework because (26) ______ will help them when they have to establish their own family in the future. Too many teenagers and young adults leave home without knowing how to cook or clean, but if parents delegate basic housework to teens as they are old enough to do it, they won't be destabilized by doing the housework in their new grown-up life.
It can be (27) ________ concluded that many parents don't really prepare their children for future, because they don't stimulate them to learn how to run a house. If parents get them responsible, teens will be more responsible and that will improve family's life.

It can be (27) ________ concluded that many parents don't really prepare their children for future

Probability of extinction depends _______ both the population size and fine details of the population demography.

There is a lot of information on the Internet, but it is difficult to know how much of it ............................enough to trust is.

Choose the best answer:

The businessmen of ancient Egypt hired ........... to shout about the things they wanted to sell.

Many species have become extinct each year before biologists can identify them.

Most  ....................  are at senior level, requiring appropriate qualifications.

Chọn từ thích hợp điền vào chỗ trống:

A / an _______ species is a population of an organism which is at risk of becoming extinct.

____________ migrate long distances is well documented.

Indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Dinosaurs were unable to survive severe ice age weather conditions.

If it ____ warm yesterday, we would have gone to the beach. 

Choose the best answer:

Mary bought this car last night, ................?

The youths nowadays have many things to do in their .............. time.

Choose the letter A, B, C or D to complete the sentences:
An endangered species is an animal or plant that's considered at ….........… of extinction.

Choose the correct answer in each sentence.

The executive director has asked all production supervisors to monitor the work schedule ____________   in the future.

Choose the correct answer in each sentence.

According to the study, the ____________   a marketing campaign is among young people, the better a product is likely to sell.

Online courses have enabled many people to realize their learning objectives.

The wolf ran _____ the forest and reached her grandmothers cottage before her.

When the teacher asked Daisy what the chemical formula was, her mind went ..................

Choose the best answer to complete the following sentences.

Cheetah's tail is ____ during fast running, because it balances the animal and allows fast and sudden turns which happen often when the prey tries to escape.

Our first priority is to offer free education to all people.