Verbal Ability - Sentence Improvement - Discussion

Discussion :: Sentence Improvement - Section 1 (Q.No.57)

In questions given below, a part of the sentence is italicised and underlined. Below are given alternatives to the italicised part which may improve the sentence. Choose the correct alternative. In case no improvement is needed, option 'D' is the answer.

57. 

His father won't be able to leave for Varnasi until they have arrived.

[A]. until they arrive
[B]. until they will have arrived
[C]. until they will arrive
[D]. No improvement

Answer: Option A

Explanation:

No answer description available for this question.

Meena said: (Oct 12, 2016)  
Why the option B is not correct?

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