共用题干
The White House

We got up early this morning and_______(1)a long walk after breakfast.We
walked through the business section of the city.I told you yesterday that the city is larger
_________(2)I thought it would be.__________(3)the business section is smaller
than I thought it would be.I suppose that's________(4)Washington is a special kind of
city.________(5)the people in Washington work for the government.About 9:30 we
went to the White House.It's_________(6)to the public from 10 till 12,and there was a
long line of people waiting to get in.We didn't have to wait very long,because the line
moved__________(7)quickly.
The White House is really white.It is painted every year. And it seems very white,
because it's got beautiful lawns all around it,________(8)many trees and shrubs.The
grounds_________(9)about four square blocks.I mean,they're about two blocks long
_________(10)each side.Of course,we didn't see the whole building.The part
_________(11)the President lives and works is not open to the public.But the part we
saw was beautiful.We went through five of the main rooms.One of them was the library,
on the ground floor.On the next floor,there are three rooms named_________(12)
the colors that are used in them:the Red Room,the Blue Room,and the Green
Room.The__________(13)are covered with silk cloth.__________(14)are many
pieces of old furniture,from the time_________(15)the White House was first built.
And everywhere there are paintings and statues of former presidents and other famous
people from history.

_________(4)
A:since
B:as
C:because
D:because of