The following sentence has been split into four segments. Identify the segment that contains a grammatical error.

Scientists believe / that many animals have / a unique languages / of their own.

They postponed ______ on vacation due to adverse weather conditions.

Direction: In the question a sentence has been given in Active/Passive Voice. Out of the four alternatives suggested, select the one which best expressed the same sentence in Passive/Active Voice and mark your answer in the Answer Sheet.

They told us to walk on the right track. 

Find out the correct superlative degrees.

High 

In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.

China is the largest producer of pork, but it (1) ______ a big problem at the moment. There is an epidemic (2) _____ is killing its pigs. The virus was first (3) _____ in August last year, but one million pigs have died by now. It is a (4) ______ virus and when a pig catches it, it dies. China thinks that one third of (5) ______ pigs are going to die by the end of this year.

Select the most appropriate option for blank No. 5.

Select the most appropriate synonym of the given word.
RAPT

Select the INCORRECTLY spelt word.

Directions: Each sentence given below has two blanks. Each blank indicates that something has been omitted. Choose the word that best fits in the meaning of the sentence as a whole. 

Top global oil exporter Saudi Arabia_____ its crude production in April to a record high, _______ its flourishing Asian market share.