Do you have enough students to clean the laboratory? –No, I think we need____________ students.

________was difficult to save the places and buildings _____destroying their old beauty.

You should have a ________ lifestyle, or you can’t keep in good ________.

____________of the twins passed the exam because they worked hard at their lessons.

Let’s go to watch the cosplay show! —Sorry, I . I have to go to my guitar lesson.