Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Billy was the youngest boy _______.

A. joining the clubB. that was joined the dubC. to be admitted to the clubD. admitted to the club

Đáp án đúng là: C

To be + the + adj (so sánh nhất) + to V
Dịch: Billy là cậu bé nhỏ tuổi nhất mà được nhận vào câu lạc bộ.