– There’s somebody at the door. Who ____ it be? Is it the postman?-- No. It ______ be him. It’s just seven o’clock. It’s too early.
It has been sunny these days, so I ______ it ______ tomorrow.
----______has Tom been a doctor ? -----Since two years ago.
Mr Hu has travelled to six countries _______.
Though he is _____ at home ,but he doesn’t feel ______
---I feel _____ hungry now. ---- Why not go for dinner with us .