I often mistake Peter his brother because they are twins and look the same.

______ me two more days, and I’ll finish the report.

oice of China has set up a big stage for young people with a talent for music, ________ some of them have stood out among others.

He asked them to come to his office one _____.

society full of challenges and opportunities, in my opinion, it is a must to have a good ______ of a foreign language.