—Do you know________?—Sorry,I don’t know.A.if she will come to the concert or notB.whether she will come to the concert or notC.if will she come to the concert
________ I’m thirsty , __________ I drink some water.
Linda with his father often _________ the zoo to see the animal.
Is this ________ elephant or _______ lion?
Let’s play tennis!—. I need to go to school today.
—What’s favorite subject? —My favorite subject is math.