--- Is your sister as serious as you? --- No, she isn’t. She is           .

—What bad weather!—Yes. The weather report says it will be even ________ later on. 

If you want to become thinner and healthier. You should eat _______food and take ________exercise.

 Of all the stars, the sun is        .

This dictionary is pretty cheap. The price of it is _________ of the three.