Fill in the blank with a suitable option:
You must phone me as soon as _________ your exam results.
Answer : A
Important thing to determine the sequence of tenses in a sentence is to know that it is arranged in the order is Past --> Present --> Future, just as it happens in real life. Therefore, it is important to determine the occurrence of each action relative to each other.
Reading the sentence in the question, we understand the person speaker is speaking to will first receive the exam results and then would immediately phone the speaker.
Grammar Rule Required to know here:
·A past tense in the principal clause is always followed by a past tense in the subordinate clause.
·If the tense used with the principal clause is in the present or future tense, the tense of the subordinate clause can be in any tense based on what needs to be conveyed.
Therefore, as the principal clause here is in present tense, the blank in the subordinate clause can be in any tense. The most appropriate here is present tense ("you get").
Thus, the correct complete sentence is:
You must phone me as soon as YOU GET your exam results.