.With that trust ____ to serve all Americans and I will do my best to fulfill that duty every day as your President.

I find _______ difficult to finish the work on time. We only have three hours left.

They will have a class meeting 8：00.[ ]

What are you searching the Internet for ? — I am trying to find out _______.

What can we do to help others?—We can ______ a food bank to help hungry people.