求问一道OG语法题

kasala

A surge in new home sales and a drop in weekly unemployment claims suggest that the economy might not be as weak as some analysts previously thought.

A. claims suggest that the economy might not be as weak as some analysts previously thought
B. claims suggests that the economy might not be so weak as some analysts have previously thought
C. claims suggest that the economy might not be as weak as have been previously thought by some analysts
D. claims, suggesting about the economy that it might not be so weak as previously thought by some analysts
E. claims, suggesting the economy might not be as weak as previously thought to be by some analysts

这个题的D选项中，so weak as 和 previously thought 之间需要加be动词来表示被动吗？

kasala

up