1)Analysts blamed May's sluggish retail sales on unexciting merchandise as well as the weather, colder and wetter than was usual in some regions，which slowed sales of barbecue grills and lawn furniture.
(A) colder and wetter than was usual in some regions，which slowed
(B) which was colder and wetter than usual in some regions，slowing
(C) since it was colder and wetter than usually in some regions，which slowed
(D) being colder and wetter than usually in some regions，slowing
(E) having been colder and wetter than was usual in some regions and slowed
comma+doing modify the previous clause and associate with the subject of that clause
being and having been in D and E modify "analysist blame" . Wrong
"which" in A and C must modify "region". Wong. though "which" can modify SLIGHTLY far noun, "which" can not modify far noun-"which" can not jump far over "colder and ... regions" to modify "weather"
B is left.
IN b, "slowing" modify the previous clause " which is colder and ...regions" . correct.
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