Comparing two people/things: expressions：练习题

Complete the sentence using the correct comparative expression:
This new smartphone is _______ expensive than the model released last year.

Which sentence uses 'as...as' correctly to compare two items?

Complete the double comparative structure:
The harder you study for the test, the _______ your final grade will be.

Fill in the blank with the correct comparative form:
Sarah is _______ than her brother, even though he is older.

Complete the sentence to show continuous change:
As the exam approaches, the students are getting _______ and _______.

Rewrite the following sentence using the as...as expression to compare the two people:
My sister is 15 years old and my cousin is also 15 years old.