दिए गए वाक्य का वह भाग ढूँढ़िए जिसमें कोई त्रुटि है। यदि कोई त्रुटि नहीं है, तो ‘No error’ चुनें।

Unless you prepare well, you will not get the first class. 

The correct answer is 'No error'

Key Points

• According to grammar, the sentence does not have any errors.
• Let's see the sentence grammatically-
  • First of all this sentence is a conditional sentence opening with the conjunction 'unless' in this clause, we need to use present tense and in the main clause we need to use future tense.
  • Also, we need to use 'the first' as with the 'second, third, etc' we usually use the definite article 'the' with it.

So the correct answer is Option 1.

Mistake Points

• You will get confused with 'not' and 'unless'. We cannot use 'not' in the subordinate clause when the 'unless' the subordinate conjunction is used. In the given sentence the subordinate clause is 'Unless you prepare well' hence in this clause we can't use 'not' but we can use 'not' in the main clause.