题目

若使分式的值为零,则x=(   )   A.2或-2    B.-2   C.2    D.4 答案：.BDear Kitty,     I am sorry that I did not write to you earlier because I have been very busy. I was helping    with a charity show to raise money    31    Project Green Hope. A lot of work needed to be finished, so I did not have much free time.   I felt very happy when I    32    to be the host. It was exciting,    33   I was also very nervous. I know that lots of people would come    34    the show and many pop stars would come, too. My job was to    35    each star and I also had many other duties. We practiced a lot before the show. I had to remember to look at the right camera at the right time. At first, I thought I would never be    36    to remember all the words.   The big day came very quickly, and I was so excited. Twenty minutes before the big event, we    37    the doors and many people came into the theatre to watch the show. The fans of the pop stars were making a lot of noise, so I had to speak    38   . A lot of    39    has been given to Project Green Hope. I hope more events like this will be organized to raise money for charity and I think more people should be    40    to take part in them. See you soon . Best wishes! Ricky 1.A. with       B. for          C. from         D. towards 2.A. choose     B. chose            C. am chosen        D. was chosen 3.A. or         B. so           C. and          D. but 4.A. to look        B. to watch     C. to notice        D. to find 5.A. introduce  B. teach            C. know         D. help 6.A. sorry      B. glad         C. able          D. afraid 7.A. opened     B. broke            C. locked        D. closed 8.A. quickly        B. happily      C. quietly          D. loudly 9.A.food        B. paper            C. money            D. medicine 10.A. invited       B. found            C. caught           D. carried