1.—He got his first book published.It turned out to be a bestseller.           —When was ______?—______ was in 2000 when he was still in college.           (浙江2007)A.that; This          B.this; It        C.it; This           D.that; It   2.—There is still a copy of the book in the library.Will you go and borrow ______?—No,I’d rather buy ______ in the bookstore.(陕西2007)A.it; one B.one; one C.one; it    D.it; it3.______ is our belief that improvements in health care will lead to a stronger,more prosperous economy.(浙江2006)A.As   B.That     C.This      D.It4.It is no ______ arguing with Bill because he will never change his mind.  (2006全国卷II)A.use   B.help     C.time      D.way5.______ in the regulations that you should not tell other people the password of your e-mail account.(上海2005)A.What is required    B.What requires   C.It is required     D.It requires6.He hasn’t slept at all for three days.______ he is tired out.       (湖北2005)A.There is no point    B.There is no need   C.It is no wonder     D.It is no wayKey:1-3 DAD  4-6 ACC 从A、B、C、D四个选项中,选出可以填入空白处的最佳选项.1.He didn’t make ______ clear when and where the meeting would be held.(天津2007) A.this    B.that      C.it    D.these 2.______ is our belief that improvements in health care will lead to a stronger,more prosperous economy.                        (浙江2006)A.As   B.That  C.This   D.It3.The doctor advised Vera strongly that she should take a holiday,but ______ didn’t help.(2005全国卷III)A.it       B.she       C.which   D.he4.I’d appreciate ______ if you would like to teach me how to use the computer.  (山东2006)A.that  B.it          C.this       D.you要具体的分析!比如说it充当什么成分、句子成分意思都要、谢谢!