Sentence improvement (tense and article/collocation): Choose the best replacement for the underlined part. Original sentence: "If he has to spend five hours in the queue, it was really a wastage." Select the most appropriate correction.

Given data

• Condition in present: "has to spend".
• Main clause wrongly in past: "was".

Concept/Approach
Maintain tense agreement: a present-time condition takes a present-time result ("is").Common collocation is "a waste" (more idiomatic than "a wastage"), but we must choose from the given options.

Step-by-step
Replace "was" → "is" to match the present condition.Keep the remainder per available options: "really a wastage".Corrected: "If he has to spend five hours in the queue, it is really a wastage."

Option analysis
D fixes tense and word order. A/B/C are ungrammatical; E keeps the tense mismatch.

Final Answer
is really a wastage