I __________ a novel written by O·Henry(1862—1910) , a well known American short story writer last night, and I'll finish it another night.
Achieving a high degree of proficiency in English as a foreign language is not a mysterious _____ without scientific basis.
They were so far away that I couldn't _____ their faces clearly.
If the boy had _____ the dog alone it wouldn't have bitten him.
With sufficient scientific information a manned trip to Mars should be _____.
_____ inviting guests and not treating them properly!