No one has _____ been able to trace the author of the poem.

        A. still                           B. yet                           C. already                           D. just

B. yet  


解析:

yet 常用于現(xiàn)在完成時(shí)的否定句中, 意為“尚, 還”。

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科目：高中英語 來源：江西省瑞昌一中2009-2010學(xué)年度高一下學(xué)期期中考試英語試題 題型：完型填空


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I was in high school at the time and my sister was too 38 to take part. She wanted to 39 , so she made sixty cookies for us to take and 40 to people. When we got to the homeless shelter we passed out the remaining 41 we had left. Next, we began making sandwiches and pairing them with other goodies(好吃的東西)and 42 them with the crowd. I had the cans with my sister’s cookies in them and began to walk around, offering them to anyone near me.
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38    A    excited                 B       young                 C     naughty                D.      eager
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43  A    caught                  B       approached          C     limited                 D.      called
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51    A    whether                B       when                   C     how                     D.      why
52    A    learns                   B       deserves              C     leads                    D.      chooses
53    A    still                      B       yet                      C     ever                     D.      just
54    A    generous              B       nice                    C     simple                  D.      political
55    A    decision                 B   choice                  C     difference             D       invention

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