The old gentleman is considering _________he move toNew York with his daughter and son-in-law or live alone at home.

Life is harder for Senior Three students throughout China．Hardly _____ endless exercises or tests．

The ______ boy was last seen ______ near the gate of the park.

May I smoke here—No, you ______. Look at the sign, it says, “No smoking!”

Listen, Mum. I heard the footsteps. Is it Dad —It ___ be him. He’s gone to Beijing on business this morning.