JLPT

Example

• あいつがガッツポーズするなんて、よっぽど嬉しかったんだろうな。 It must have been something really big for him to strike a triumphant pose like that.
• よっぽど印象に残る事じゃないと覚えてないんだよね。 Unless it's something fairly impressive, I won't remember it.
• 喜色満面の笑みを浮かべているけど、彼、よっぽど嬉しいことがあったんだろうな。 You could tell by the ear-to-ear grin that came to his face that he really had something to smile about.