Q38:

Imported into Massachusetts form Europe in 1869, the gypsy moth was used by a French scientist in an attempt at developing a strong strain of silk-producing insects, crossing gypsy moths with adult silkworms.

1. Imported into Massachusetts from Europe in 1869, the gypsy moth was used by a French scientist in an attempt at developing a strong strain of silk-producing insects, crossing gypsy moths with adult silkworms.
2. Imported into Massachusetts form Europe in 1869, a French scientist was attempting to develop a strong strain of silk-producing insects by crossing gypsy moths with adult silkworms.
3. To cross gypsy moths with adult silkworms, in attempting the development of a strong strain of silk-producing insects, a French scientist in 1869 imported the gypsy moth into Massachusetts from Europe.
4. The gypsy moth was imported into Massachusetts from Europe in 1869 by a French scientist attempting to develop a strong strain of silk-producing insects by crossing gypsy moths with adult silkworms.
5. In an attempt at the development of a strong strain of silk-producing insects, a French scientist, importing the gypsy moth from Europe into Massachusetts in 1869 in order to cross gypsy moths and adult silkworms.

A有两个错误：

1：in an attempt at developing 不对，应该是 in an attempt to develop

2：crossing gypsy moths with adult silkworms应该修饰French scientist ，但这里指代就不清楚了，我觉得更像是在指代the gypsy moth