I need to call my friend David ______ coat I walked off by mistake yesterday.
The managers discussed the plan __________ they would like to see __________ the next year.
The project __________ because of the lack of fund.
You can't get to the island __________ by boat.
At the meeting they discussed three different __________ to the study of mathematics.
________ to his experiment, he didn't notice that autumn had already come.