Answer:
The correct answer is <u>C</u>: but so have
.
Explanation:
After <em>but</em> we need an auxiliary verb to keep both parts of the question parallel, so we won't use A, B, and D, as these options do not have both parts parallel.
As the action started in 1965 and it is still valid, we should use the Present Perfect, so we won't use E (as this is Past Simple).
Therefore, the correct answer is C.
Answer:
I think I've already answered this the answer is C
Perhaps most importantly, the Mongol empire inextricably linked Europe and Asia and ushered in an era of frequent and extended contacts between East and West. And once the Mongols had achieved relative stability and order in their newly acquired domains, they neither discouraged nor impeded relations with foreigners.
