He insisted that the sky ____ clear up the following day.
I worked as hard as I could _______ for the final exam.
Not only I but also Jane and Mary _______ tired of doing the same thing all the time.
Getting _______ in the forest is very dangerous. A. losing B to lose C. lost D. being lost
When traveling abroad, we should ______ learn more about local customs so as to avoid unnecessary misunderstanding during communication.
-- Not knowing what style of iPad to choose, _______.