I desire to make friends with him, but ________ I am worried that I can’t get along well with him[ ]

If I have any trouble designing Swiss Pavilion of EXPO2010, could you help me? — __________

You look very worried. ________ —My mother suddenly got ill yesterday.

Many developed countries have agreed to help the less developed ones but it remains ________ whether they will take action or not.

It is _____ any wonder that his friend doesn’t like watching television much [ ]