It doesn’t often snow in my hometown in winter, but it ___be rather cold sometimes. 

 We ________ here on time but we were caught in a traffic jam.

—Why can your neighbor know so much about London?—He ____ have been there before.

---I want to know if I can smoke here?---No, you _________. Could you see the sign “NO SMOKING” there? 

          — _____ you find _______ ways to work out this problem, Jim? — Yes, I ______.