engineering recuitment DRDO CEPTAM STA B Tier I (Sr. Technical Assistant) Mock Test 2022 English Grammar Phrase Replacement
Select the option that will improve the underlined part of the given sentence. In case no improvement is needed, select 'No improvement required'.
Unless you carry a Covid-19 negative report, you can travel by air.
1
Provided
2
Only
3
Until
4
No improvement required