A. The; longest　　 B. the; longest　　   C. /; longer　　  D. A; longer

The Changjiang River is ______ river in our country.

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A. the longest　　B. longest　　C. longer　　D. long

_________ Yellow River is the second __________ river in China.

　　A. The; longest　　B. ／; longest　　C. ／; longer　　D. A; longer

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C. longer　　　　 D. longest

　　The president is the head of the nation and the Executive Branch in the USA and is chosen in a national election for a four-year term of office and may be reelected for a second term, but not to allow the third time. He must be a nation born citizen and at least 35 years. Many presidents in American history served two terms, but Franklin D．Roosevelt was the only president who served four terms.

　　There are two stages in the election of president-first, the people in each state choose the list of presidential electors for the state, and second, the electors from all the states cast their votes for presidential candidates, electing a president and a vice-president. They meet in their state capital in early January of the following year to“elect”a president and a vice-president. They vote very strictly. If there are three or more candidates, none of them receives more than half the electoral votes, the House of Representatives, by a majority vote, will choose for president one out of the three having the highest electoral votes. In this case the voting is by states, each state counting as one vote.

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