Choose the best answer to complete the following sentences.

Many modern medicines are derived ____ plants and animals.

We should make full     of renewable sources of energy such as wind and solar power in the world.

______ saying was so important that I asked everyone to stop talking and listen.     

The majority of the students _______ home for their holidays for the past few weeks.

Choose the best answer:

It was ................. to listen to the story which the guide told. 

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They .................. him if they would come there the day after.

Forest dwellers had always hunted the local _______ but their needs had been small.

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. 
Despite the wealth of information campaigns telling people about global warming and its causes, most people have (23) _______to realize how severe the problem is. Coming climate changes could alter as much as one third of plant and animal habitats by the end of the 22nd century. These changes could in (24) ____ cause widespread extinctions among plant and animal species around the globe. 
Coastal and island habitats are perhaps in the greatest danger (25) _______ they face the combined threats of warming oceans and rising sea levels. As habitats change, many animals will come under intense pressure to find more suitable homes for themselves. Mass (26) ____ of at least some animals are certainly to be expected, but the fact remains that many animals will simply not be able to move fast enough. 
Such dire predictions may sound alarmist, but they are based on the rather moderate estimate that the amount of carbon dioxide in the atmosphere will double by 2100. Many scientists believe, however, that this figure is actually very conservative, and they claim that a tripling is far more realistic. If they are (27) ____, the effects on nature will be even more dramatic

Coastal and island habitats are perhaps in the greatest danger (25) _______ they face the combined threats of warming oceans and rising sea levels

Choose the best answer:

............ , he won the prize. 

The storm gradually decreased in ................... as it came close to the coast.

When friends insist on ________expensive gifts, it makes most people uncomfortable.

Choose the correct answer to each of the following questions. "For environmental safety, we need to find ways to reduce ______ of fumes and smoke of factories."

Chọn đáp án đồng nghĩa với câu sau:

It's not necessary for you to do the test. 

Choose the best answer:
Jerry has been burning the midnight ________ over the last few days; his final exam is soon.

. __________ you have thought about where you are at now and where you want to be, you can work on getting to know your skills, interests and values.

Choose the best answer:

She went to the theater last night ............... had a wonderful time.

Synchronized swimming is a sport in which groups of swimmers ................ in patterns in the water to music.

Chọn đáp án đúng để hoàn thành các câu sau:

Of course, you can come to the party. _______.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined bold word(s) in each of the following questions: 

Researchers have found that people are sleeping almost two fewer hours a night than they were in the 1960s, and our health is deteriorating as a result.

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction in each of the following questions.

(A)The little boys mother bought (B)him a (C)five - speeds racing bicycle (D)for his birthday.

Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions:

Unless the two signatures are identical, the bank won’t honor the check.