Question

4) A: How often ( you \ clean) your room?
B: Once a week.
5) A: Lisa ( study) hard these days.
B: I know. She ( want) to pass her exams.
5) A: You (look) terrible, What's wrong?
B:I (have) a terrible headache.

Answer 1

4a How often do you clean...?
5a is studying
5b wants
5a are looking
5b I am having

Answer 2

A how often do you clean your room?
B once a week
A lisa is studying hard these days
B I know. She wants to pass her exams
A you look terrible, what is wrong?
B i am having a terrible headache