( ) (5)你向别人介绍自己的爷爷,可以说: A. This is my grandpa. B. This is my father.
Are you ____? Yes, we are. A.writeingB.writingC.write
What are these men doing? ____ are drinking. A.They B.He C.She
Are you dancing? No, ____. A.we areB.we aren'tC.we can't
We are ____ the floor. A.mop B.moping C.mopping
Who's that boy? ____. A.His Dick B.He's dickC.He's Dick