With a lot of difficult problems ____, the newly -elected president is having a hard time.
| A．settled | B．settling | C．to settle | D．being settled |
_________ my grandfather grew older, he lost interest in everything except fishing.
| A．While | B．When | C．As | D．Since |
It was along the Mississippi River _________ Mark Twain spent much of his childhood.
| A．how | B．which | C．that | D．where |
It is a fact that _________ differences between countries may cause misunderstandings in communication.
| A．historical | B．cultural | C．personal | D．financial |
North Europe __________ Norway, Sweden, Denmark, Finland and Iceland.
| A．is consisted of | B．consists of | C．is made up | D．makes up |
I was greatly impressed __________ the speech by the mayor of Shanghai before the final voting for EXPO 2010.
| A．to | B．over | C．with | D．on |