It is a common knowledge that Douglas intends to retire at the end of the season

He can speak English, _    ?

In human beings, as in other mammal, hairs around the eyes, in ears and in the nose prevent dust, insects, and other matters from entering these organs.

Somebody has stolen your bag, _    ?

The patient who was not supposed to be released until the end of the week was told to dress in clothes and report to the nurses’ station.

Mosquitoes are such fast breeders that it is almost impossible to control them either by draining areas where they breed or to spary them with pesticides

A coral reef, a intricate aquatic community of plants and animals, is found only in warm, shallow, sunlight seas

One of the four underlined parts marked A, B, C, D in each sentence is not correct in standard English. Identify them: 

If I had known that the road were flooded, I would never have taken that way. 

John has bought a dictionary, _    ?

One of the four underlined parts marked A, B, C, D in each sentence is not correct in standard English. Identify them: 

If he weren’t too old, he would apply to the job as a reporter. 

Some snakes have hollow teeth are called fangs that they use to poison their victims

After the team of geologists had drawn diagrams in their notebooks and wrote explanations of the formations which they had observed, they turned to their camp-side to compare notes.

Bacteria lived in the soil play a vital role in recycling the Carbon and Nitrogen needed by plants.

The Gray Wolf, a species reintroduced into their native habitat in Yellowstone National Park, has begun to breed naturally there.

Since infection can cause both fever as well as pain, it is a good idea to check a patient’s temperature.

Scuba diving is usually carried out in the ocean in that people can explore the underwater world.

Choose the correct answer to complete the sentence. "Such unhygienic conditions encourage the ______ diseases"

You need to study really hardly is you don’t want to fail your exams

When my lost briefcase was returned with my year-long research results intact, I felt tremendously relieved. It was as if a huge heavy weight ______________ from my shoulders. 

Justice is often personified as a blind folded woman to hold a pair of scales.

If the project is finished on time, the federal government won’t award the company further contracts.