It’s convenient to use correction pen for correcting errors.

It’s convenient to use correction pen for correcting errors.
A. Correcting errors is convenient to use correction pen.
B. Correction pen is convenient for correcting errors.
C. To use correction pen is correcting.
D. It’s correction pen to use for correcting errors.

Đáp án: B
Giải thích: cấu trúc it + be + adj + to V: thật là như thế nào khi làm gì
Dịch: Thật là thuận tiện khoi dùng bút xoá để sửa lỗi sai.