When deeply absorbed in work, _____ he often was, he would forget all about eating or sleeping.
I ______ for Shanghai this Saturday, so I want to know when the earliest plane ______.
He ______ it on schedule, but somehow he fell behind.
The doctor’s dilemma was _____ he should tell the patient the truth.
All we have is 24 precious hours a day and therefore we shall waste ______
We are so tired. ______ we could take the day off tomorrow!