Directions: In the following questions, some part of the sentence is underlined. Which of the options given below the sentence should replace the part underlined to make the sentence grammatically correct? If the sentence is correct as it is given then choose option E ‘No Correction required’ as the answer.
1
Considering the high demand for flights to Gulf countries airlines, can risen prices.
» Explain it
C
As the context in the sentence suggests a possibility, use of the modal 'may' would be appropriate and as it is followed by the base form of a verb, 'rise' instead of of 'risen' will be used here. 

The underlined part 'can risen', therefore, must be replaced with 'may rise' to make it a grammatically correct sentence.

Hence, the option C is correct.

 
2
Without both issue is clarified the board will keep all other matters before it pending.
» Explain it
A
As the sentence is a type 1 conditional sentence, use of 'Unless' which means 'Except on the condition that' instead of 'Without' will be more appropriate. 

Second, as 'both' suggests 'two', the noun that is followed by it must be in plural form. 

The correct formation will be- "Unless both issues are clarified, the board will keep all other matters before it pending. 

Hence, the option A is correct.
3
The incident has clearly highlighted his knowledge and attentive of detail.
» Explain it
C
In this sentence, the predicate part followed by "..his knowledge and ..." has to be a noun phrase and hence the adjective 'attentive' must be replaced with the noun 'attention'. 

And at the same time, it's more appropriate and common to use 'to' after 'attention' and not 'of'. The correct formation, hence, will be- The incident has clearly highlighted his knowledge and attention to detail. 

Hence, the option C is correct.

 
4
The bank’s accumulated losses have come up for manageable levels this year.
» Explain it
A
'Come up for something' means 'to be eligible for something' or 'to be in line or sequence for something'. 

Ex. She came up for re-election in June. 

Hence, use of 'come up for' in the given context is erroneous. While, 'come to', which means 'to attain, achieve or reach something', will be an appropriate choice to make the sentence correct. 

Hence, the option A is correct.
5
Improving the educational system, which is one of the worst in the world, requires commitment from the country’s politicians.
» Explain it
E
The sentence is absolutely correct.

Hence, the option E is correct.