Identify the correct sentence:

১ম অংশটি অর্থগতভাবে past indefinite হতে হবে যার কারণে did দিতে হবে। আবার, present simple + after+ past perfect.
The correct sentence is:

"They did it very well after they had practiced."

Explanation:

1. "They done it very well after they had practiced" is incorrect because "done" is the past participle form of "do" and requires an auxiliary verb (like "have" or "had") to be grammatically correct. The sentence lacks this auxiliary verb.

2. "They does it very well after they had practiced" is incorrect because "does" is the third person singular present form of "do," and it should be used with singular subjects. Since the subject here is "they," which is plural, "does" is inappropriate.

3. "They did it very well after they had practiced" is correct. "Did" is the past tense of "do," appropriate for the subject "they." The sentence correctly uses the past perfect tense "had practiced" to indicate that the practice occurred before the action of doing it well.

4. "They do it very well after they had practiced" is incorrect. "Do" is the present tense form, which doesn't agree with the past perfect "had practiced." The sentence is mixing tenses inappropriately.