In these questions read each sentence to find out whether there is any error in it. If there is no error, the answer is (D).

Drinking and driving (A)/ are (B)/ a major cause of accidents(C). / No error (D).

(DIRECTIONS 13): In the following questions, you have brief passages. Read the passages carefully and choose the best answer to each question out of the four alternatives.
Deriving your authority from the government , your position would secure the respect and consideration of everyone, especially in a service where official rank carries so much weight. This would secure you every attention and comfort on your way and there, together with a complete submission to your olders. I know these things are a matter of indifference to you expect so far as they may further, the great objects you have in view, but they are of important in themselves, and of every importance to  those who have a right to take interest in your personal position and comfort.
Passage talked about whom?

There are three main groups of oils-animal, vegetable and mineral. Great quantities of animal oil come from whales, creatures of the sea, which are the largest of the animals remaining in the world. To protect the whales from the cold of the Artic seas, nature has provided them with a thick covering of fat, called blubber. When the whale is killed, the blubber is stripped off and boiled down. It produces a great quantity of oil which can be made into food for human consumption. A few other creatures yield oil, but none so much as the whale. The livers of the cod and halibut, two kinds of fish, yield nourishing oil. Both cod liver oil and halibut oil are given to sick children and other invalids who need certain vitamins.. 
Vegetable oil has been known from very old times. No household can get on without it, for it is used in cooking. Perfumes may be made from the oils of certain flowers. Soaps are made from eatable and animal products and the oils of certain flowers. 

The main source of animal oil, is –

Direction: In the following question, out of the four alternatives, choose the one which can be substituted for the given sentence.

One who studies the evolution of mankind

Direction: In these questions, a part of the sentence is given in bold. Below are given alternative to the bold part at (A), (B) and (C) which may improve the sentence. Choose the correct alternative. In case no improvement is needed you answer is (D).
On one occasion he persuaded me to accompany him on shooting expedition he was planning

India can become an economic superpower (1)/ It has a young work force (2)/ China is becoming more expensive (3)/ So it serves us well to force the idea of effective dialogue (4)/ No error (5) 

Directions: Each sentence below has two blanks , each blank indicating that something has been omitted . Choose the set of words for each blank which best fits the meaning of the sentence as a whole.

She would prefect . . . . . . travel early rather . . . . . . during peak hours.

Identify the segment in the sentence which contains the grammatical error.

The robbers broke in the house at night.