Listen! Is that Pingping playing the guitar? —No. It __________be Pingping. He has gone to Beijing.

Where does John live?—He lives on ______ floor but he doesn’t use a lift to go up and down.

Though I ___________ the phone number many times, the foreigner couldn’t write it down.

Please ________ a doctor at once, Jack. The child is badly hurt.—OK. I will.

I could read and write when I was four years old.- Really? _____.[ ]