—You’re not good at biology, are you?—______.A. Yes, I’m not.B. No, I am. C. Yes, I am.
Do you know where_______________?
On my way _______ home, I pass _______a fruit shop every day.
—Do you know if Tom ________to the concert? — I’m not sure, but if he________, I’ll go to the concert with you.
At the party, she ________a ghost.
He found_ ________very difficult ________the math problem.