I don’tknow if Mr. Li ____ to the party this evening.–I think he will come if he ____ free.

Sensible people don’t think it is_______ to buy things which are not needed even at a low price.

Scientists observe ___ making the most of our senses when we are young can keep us healthy later on in life.

（2014年福州市高三适应性练习）34. — Jeff, what’s up? You are not yourself today. — Oh, mom. I really wish I ______ the chance to visit the Microsoft company but I failed.

I called you at eight last night. But you didn’t answer.–Sorry. I the flowers in the garden.