---____ do you study for a math test? ---I study math ____ lots of exercises.
––Has Mr Li known the news? ––I’m afraid not. I called his house this morning but ____ answered.
Mom and Dad, let me ____ the dinner today.
––Can you ride a bike? ––No, I ____.
When I got home last night, my parents ____ for me at the table.
How are you now? Go to see the doctor ____ you don’t feel well.