She is so intelligent that she can________all the math problems.
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 .
-----How ____you are coughing! -----Yes, I have had a ________cough since last week.
----Why are you so tired these days? ----- Well, I have _____homework to do.