Many of us tried to make friends with him but he spent of his time practicing in math.

В данном задании необходимо прочитать текст и вставить слова в правильной грамматической форме.

1. Many of us tried to make friends with him but he spent of his time practicing in math. MANY
2. Many - глагол, который необходимо употребить в форме, показывающей количество времени, проведенного за практикой, т.е. much. Many of us tried to make friends with him but he spent much of his time practicing in math.

Ответ: Many of us tried to make friends with him but he spent much of his time practicing in math.