Do you have any plans for this Sunday—I’m not sure. I ____ go to the countryside to see my grandmother.

Are _____ your parents—No , ______ aren’t.

Who will send you to the new school, your father or your mother — ________. I will go there alone.

lying the theory to the problem, we can brush away the details and ______ simple patterns.

There is an increasing concern _____________ about Ebola infection. Every country has taken necessary measures to prevent it.