Choose the best answer to complete each of the following sentences: 

. She was sick yesterday, ________ she was absent from school.

It’s been brought to my attention that there has been a number of thefts from the office.

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

Petroleum is composed of a complex mix of Hydrogen and Carbon

When there are low sales, companies often decide developing new products.

Until recently, photocopy machines were regarded strict as business and professional office equipment that required a lot of expensive service

VOCABULARY AND STRUCTURES: Choose the best options 

I’m very busy, so please don’t disturb me _______ it’s urgent. 

The bite of the Black Widow spider can be very inflammatory to the affected nerves that hospitalization may be required.

Choose the best option A, B, C or D to make meaningful sentence: "There is no doubt ____ her suitability for the job."

Find the mistake in each of the following sentences.

Sometimes (A) it is difficult (B) to avoid to drink (C) when we enjoy an informal party (D).

People with exceptionally high intelligence quotients may not be the best employees since they become bored of their work unless the job is constantly changing.

It should not be assume that the lower the price, the happier the buyer.

Identify the error in each sentence: (A) How you (B) got there (C) do not concern (D) me.

Some of us have to study their lessons more carefully if we expect to pass this examination.

They usually took a tree back with them and put it on the centre of the village.

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

 __________ you save your money, you will be able to go to college.

Many of the population in the rural areas is composed of manual workers.

Before the invention of the printing press, books have been all printed by hand. 

Jim didn’t have a house and a car, for he was jobless for a long time

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

These are__________ that I can’t finish them.

Chọn một từ đúng trong ngoặc để hoàn thành các câu sau.

We are waiting for the _____________ of his plane.