Modern science has given clear evidence ________ smoking can lead to many diseases.[ ]

It was very __________ of you to let us know you were going to be late.

me at six tomorrow morning ,will you—Why that early I_____

Why didn’t you tell me the fact earlier—I _____ it for granted ______ you knewit

It seemed that the conflict________have been avoided with better communication,but they were both unwilling to give in to each other.[ ]