—Which city has __________ population, Shanghai, Hangzhou or Ningbo?  ----Shanghai, of course.

I am good at playing the piano, but Lucy is even ________ at it.

Now the air in Yancheng is           than it used to be. Something must be done to stop it.

 In our city, it’s ____in July, but it’s even _____ in August.

The more careful you are, _______ mistakes you’ll make in the exam.