— You _______ for me this morning. I came over here with Michael in his car.— Well, why didn’t you let me know earlier?

-- It’s a pity that you missed the lecture on nuclear pollution. -- I _________ it, but I was busy preparing for a job interview.

The boy suggested that Tom ______ the problem another way, and Tom’s expression suggested that he_________. 

Although James Cook　　　the first westerner to have discovered Australia,New Zealand and Hawaii,his travels led to the creation of more accurate and reliable maps for vast parts of the world.

___ for the fact that you were lazy, you could have finished the assignment by now.