| Function | Usage |
| 1. Verb | a. You never miss the water till the well runs dry |
| 2. Adjective | b. Tears well up in his eyes when he reads the letter |
| 3. Noun | c. The children behaved well |
| 4. Adverb | d. They played hard. It was a well deserved victory |
An alternative way to solve this matching question is to work usage-first: read each numbered sentence (a-d), decide what grammatical role "well" is playing in it, and then test that classification against each of the four options.
Only the pairing in option A survives the sentence-by-sentence check, confirming 1-b, 2-d, 3-a, 4-c as the correct match.
Hence, the correct answer is 1-b, 2-d, 3-a, 4-c.