白勇语法2道题，bow~~

33．The spraying of pesticides can be carefully planned, but accidents，
            weather conditions that could not be foreseen, and pilot errors often cause much larger deposits of spray than they had anticipated. Why not D ?
（A）weather conditions that could not be foreseen，and pilot errors often cause much larger deposits of spray than they had
（B）weather conditions that cannot be foreseen， and pilot errors often cause much larger deposits of spray than
（C）unforeseeable weather conditions， and pilot errors are the cause of much larger deposits of spray than they had
（D）weather conditions that are not foreseeable，and pilot errors often cause much larger deposits of spray than
（E）unforeseeable weather conditions， and pilot errors often cause much larger deposits of spray than they had

Seeming to be the only organization fighting for the rights of poor people in the South, Hosea Hudson, a laborer in Alabama, joined the Communist party in 1931. why not B ?
（A）Seeming to be
（B）As
（C）In that they seemed
（D）Since it seemed
（E）Because it seemed to be