Question

Choose the most appropriate phrase from the options given below to complete the following sentence.

The aircraft_______ take off as soon as its flight plan was filed.

1. is allowed to
2. will be allowed to
3. was allowed to
4. has been allowed to

Answer 1

Correct Answer - Option 3 : was allowed to

The correct answer is Option 3) i.e. was allowed to

•  The sentence uses the auxiliary verb 'was' in the latter part of the sentence, which clearly indicates that the tense used here is the past tense.
•  After going through all the options we can clearly see only Option 3 is in the past tense.
•  So by following the structure of parallelism 'was allowed to' is the apt choice.

Thus, the complete sentence is: The aircraft was allowed to take off as soon as its flight plan was filed.