下列语句中，标点符合使用正确的一项是（ ）

I did badly in my English exam.How unlucky I am!— .Cheer up! Everything will be OK.

He’s been informed that he _________for the scholarship because of his academic background.

en they met, they stopped and saidhello to_______.

It was only after he had read the papers Mr. Gross realized the task before him was extremely difficult to complete.