Two exercises to practise the think-aloud structure and correct verb tenses for live technical explanations.

Task A

Fill in the gap

Fill in the gaps using the correct word from the word bank. Each word is used once.

I will start with a ___ explanation, then we can go deeper.

I will try a ___ solution first to confirm the basic logic.

Since the input is large, I would prefer a more ___ algorithm to save time and memory.

We need to consider the ___ between simplicity and performance.

My ___ would be to group users by segment first, then filter by date.

Task B

Label

Read this candidate response from a live coding interview. Three sentences use the wrong verb tense for a live explanation. Find them and label them as "Wrong tense."

"I will start by creating an empty set called 'seen'."

"I thought of using a for-loop to go through each number in the array."

"For each number, I calculate the complement by subtracting it from the target."

"If the complement is existing in the set, that means we found a pair."

"Otherwise, I add the current number to the set and move on."

"If we did not find anything by the end of the loop, I returned false."

Task: Explain your approach

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