”It’s five forty-five”means(意思是)”It’s ___________.”

Is this ______ English book?—No. ______ is at home.

What is Lucy doing now?—She _____ a book.

People are really ______________ on the beach in summer (夏季).

What do you want to _________ your new dog, Lucy?—Snow White. It’s the best name for her because she is beautiful and white.