The House Speaker and the temporary President of the Senate are usually（）Aelected by the majority partyBchosen from the majority and minority partiesCmembers of the majority partyDchosen freely from the Congressmen and Senators

When the builder starts to build a house, his estimate will have to be corrected and re-vised because__________.

A.it is wrongly worked out by a workman
B.the future owner of the house thinks the estimate is so high that he cannot afford the building
C.the prices of building materials and the expenses of labor may be different from the originalprices and expenses
D.estimates are usually mistaken in the beginning

According to paragraph 1，the presidency of Andrew Jackson was especially significant for which of the following reasons？( )

A.The President granted a portion of his power to the Senate.
B.The President began to address the Senate on a regular basis.
C.It was the beginning of the modern presidency in the United States.
D.It was the first time that the Senate had been known to oppose the President.

The president came out of the house, ____by his 3 bodyguards.

A.follows
B.followed

C.following

D.follow

The sale usually takes place outside the house with the audience___________on benches, chairs or boxes.

A.having seated
B.seating
C.seated
D.having been seated

Of all Barry H．Landau's anecdotes about his friendships with presidential dogs,perhaps the best is the one about the time the Clinton White House called to postpone his play-date with Buddy．
Yes,Landau is both human and an adult,a 60-year-old author,presidential historian,former White House protocol officer and memorabilia collector．But so enamored is he of dogs,and so well connected to a succession of presidents,that he had an appointment for a South Lawn romp one day with Buddy,Bill Clinton's Labrador retriever(拉布拉多犬).
Logistics got in the way,though,and hence Clinton secretary Betty Currie's apologetic voice mail left at the Smithsonian Institution,where Landau was doing research:"I'm sorry,but we'll have to reschedule Mr．Landau's play-date with Buddy."
Not surprisingly,this is a happy week for Landau,with the new Obama family dog,Bo,joining a White House tradition that dates to George Washington．It's one that Landau feels is invaluable to a presidency.
"Having a dog just humanizes a president,"he says．"It completes the picture．It's something people can relate to."
And Landau has related to the best of them．He's known about 25 White House dogs since the Eisenhower administration．Among the presidential-pooch memorabilia in his Manhattan apartment are matching orange inaugural dog coats worn by LBJ's twin beagles(小猎犬),Him and Her,and a photo of Landau kissing Clipper,JFK's German shepherd.

According to Landau,why is it important for a president to have a dog?

A.It increases his chances of being reelecte
B.It humanizes the president,making him easier to relate t
C.It shows that the president can care for an anima
D.It is the tradition of White House as a presiden

The Parliament of Australia consists of the House of Representatives and( )

A.the House of Commons
B.the House of Lords
C.the Senate
D.the General

According to paragraph 1，the presidency of Andrew Jackson was especially significant for which of the following reasons？( )

A.The President granted a portion of his power to the Senate
B.The President began to address the Senate on a regular basis
C.It was the beginning of the modern presidency in the United States
D.It was the first time that the Senate had been known to oppose the President