All flights ____ because of the snowstorm, manypassengers could do nothing but take the train.

Jane, have you finished your paper?—No, I ________ my sister with her drawing all the morning

Peter some beautiful postcards for his friends yesterday.

Time is life; therefore, waste your time and waste your life, ______ master your time and master your life.[ ]

I used to drink a lot of tea butthese days I _____ coffee