You are supposed to collect the mistakes you have made. You will make the same mistakes ______.

 It is universally believed that a student with an extremely ________ mind usually gets high scores in the exams, especially in the physics exam.

 When the students _____ the teacher about their problems, he was ready to give a helping hand.

The little child didn’t understand the ____ question so there was a ____ expression on his face.

 It took us several hours to make the old man ________ of the safety of travelling by air.