Select the most appropriate option to fill in the blank.
___________ the teacher entered the classroom, all the students stood up to greet him.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. As soon as.
'As soon as' is the most appropriate phrase here because it implies that the students stood up immediately when the teacher entered the classroom, which is exactly what the sentence intends to convey.
'Yet' is used to contrast or introduce something unexpected, but it doesn’t fit the context of this sentence.
'Whereas' is used to show contrast between two clauses, which is not needed here since there’s no contrasting information.
'Rather' is used to express preference or contrast, which is also incorrect for this situation.