Susan is _______ girl of us all.

In order not to be disturbed, he spent two hours ____ in his study.

Life can be hard __________, but you must keep your head held high and stay positive. Never letanyone bring you down.

What happened _________ you ________ April Fool’s Day— I was fooled by my little brother.

Experts at the conference agreed that such a product with environmentallyfriendly technology is ____.[ ]