The context clues are re hints that an author gives to help define a difficult or unusual word. Remember that those words <span>may appear within the same sentence as the word to which it refers, or it may follow in a preceding sentence. For the word dissaprobation, you have the following context clues: Terror, Horror, disgust, A buzz and murmur. The rest of the words given are not context clues for disapprobation</span>
Answer:
We will tell…” is actually using the modal verb will/would in a present time sense or a future time sense therefore the present tense /arrives/ is the only choice that matches in grammar. …will tell = We are using our will [right now] to decide what we shall say when he arrives.
Other Possibilities:
1. We will tell him about it after he has arrived.
2. We would have told him about it after he had arrived.
Explanation: