Change the following Exclamatory Sentence into Assertive Sentence by…

The correct answer is Option (4) → I wish I had met you ten years ago.

Exclamatory "If only ..." to assertive:

A regret about the past uses the past perfect after "I wish": had + past participle. The tense and the time phrase stay unchanged.

Change	Exclamatory	Assertive	Why
Opening words	If only	I wish	“If only ...!” expresses a strong wish or regret. In the assertive form it becomes “I wish ...”.
End mark	(!)	(.)	An assertive sentence ends with a full stop.
Full sentence	If only I had met you ten years ago!	I wish I had met you ten years ago.

Example: If only I had listened to my mother! → I wish I had listened to my mother.

Why the Other Options are Incorrect?

Option 1: I wish I am meet you ten years ago. — Incorrect. "Am meet" is ungrammatical, and a past regret needs had met.

Option 2: I wish I will meet you ten years later. — Incorrect. It turns a past regret into a future hope, and "I wish I will" is not standard English.

Option 3: I wish I will meet I am ten year. — Incorrect. It is meaningless and ungrammatical.