_____with so much trouble, we failed to complete the task on time.
----Hi, Tracy; how are you doing?-----I’m tired out, for I ______my living room all day.
Sandy could do nothing but ______ to his teacher that he was wrong.
He hurried to the booking office, only ________ that all the tickets had been sold out.
Victor apologized for __________ to inform me of the change in the plan.
Not only Jack but also his parents ________ the home accident.