Answer: B

Explanation:

The word ‘cousin’ is a gender-neutral noun, e.g., he is my cousin itself tells that it is a male cousin. So, there is no need to use the word ‘brother’ in this sentence, e.g., he is my cousin.

Answer: D

Explanation:

Between is generally used for two persons or objects. In this sentence, the number of sons is not specified. Hence, ‘among’ should be used.

Between can be used for more than two items only when the items are distinct or different from each other, and we name each of the items, e.g., I am trying to decide between, the blue shirt, the black shirt and the yellow shirt.

Among will be used if we treat the items as a part of a group, e.g., I am trying to choose among these shirts.

Answer: B

Explanation:

Replace ‘scissor’ with ‘a pair of scissors’ in this sentence. The singular form of scissors is ‘a pair of scissors,’ and the plural form of scissor is ‘scissors.’

Answer: C

Explanation:

‘At least one of the bad habit’ refers to one bad habit out of many bad habits. So, replace ‘habit’ with ‘habits’ in the sentence.

Answer: B

Explanation:

Don’t let the word ‘teachers’ confuse you. The subject in this sentence is each, and each is always singular, so replace ‘have’ with ‘has’ e.g., each of the teachers has been given.

Answer: B

Explanation:

When more is followed by a plural noun, e.g., more + plural noun + than one, the verb will be plural. So, replace ‘has’ with ‘have’.