[填空题] The history of modem water pollution goes (B1) to February 20, 1931, when Mrs. Murphy (B2) over her backyard fence and said to Mrs. Holbrook, "You (B3) those shirts white Mrs. Holbrook was (B4) to admit they were as white as she could get them (B5) that ordinary soap. "What you should use is this Formula Cake Soap which (B6) against the dull grey look that the family wash (B7) had." Doubtful (B8) adventurous, Mrs. Holbrook tried the Formula soap, (B9) did take the grey out of her husband’’s shorts. But what she didn’’t know was that the water eventually (70) into the Blue Sky River, killing two fish. Three years later, Mrs. Murphy was (B11) her shirts and Mrs. Holbrook said, "How did you ever get your collars so (B12) ,surely not with Formula " "Not ordinary Formula. But I did with Super Fortified Formula. You see, it attacks dirt and destroys it. Here, try some (B13) your shirts." Mrs. Holbrook (B14) and
A. A．it
B．she
C．which
D．that

[填空题] The history of modem water pollution goes (B1) to February 20, 1931, when Mrs. Murphy (B2) over her backyard fence and said to Mrs. Holbrook, "You (B3) those shirts white Mrs. Holbrook was (B4) to admit they were as white as she could get them (B5) that ordinary soap. "What you should use is this Formula Cake Soap which (B6) against the dull grey look that the family wash (B7) had." Doubtful (B8) adventurous, Mrs. Holbrook tried the Formula soap, (B9) did take the grey out of her husband’’s shorts. But what she didn’’t know was that the water eventually (70) into the Blue Sky River, killing two fish. Three years later, Mrs. Murphy was (B11) her shirts and Mrs. Holbrook said, "How did you ever get your collars so (B12) ,surely not with Formula " "Not ordinary Formula. But I did with Super Fortified Formula. You see, it attacks dirt and destroys it. Here, try some (B13) your shirts." Mrs. Holbrook (B14) and
A. A．straight
B．down
C．off
D．back