A. such as the Asian carp that are threatening to invade Lake Michigan, but that are far larger, more vicious and mounted on four legs
B.like the Asian carp that have threatened an invasion of Lake Michigan, but far larger, more vicious, and mounted on four legs
C.like the Asian carp that are threatening to invade Lake Michigan, but are far larger, more vicious, and are mounted on four legs
D.like the Asian carp that are threatening to invade Lake Michigan, but far larger, more vicious, and mounted on four legs
E.such as the Asian carp that threaten to invade Lake Michigan, but are far larger and more vicious, and mounted on four legs
正确选项是D,我选的是E,一上来就把BCD排除了。。
求解!