So heavy is his _______ that he is as busy as a bee, unable to spare(抽出) even a day for his family in a month.
I would have come earlier, but I ________ that you were waiting for me.
five hours to the meeting, David learnt that it had been postponed.
After the new technique was introduced,the factory produced ________ tractors in 1988 as the year before.
Written in a hurry, How can it be satisfactory?
Give me a cigarette, please. Mine .