From the 9th century Ukraine was a part of Kievan Rus, the first significant East Slavic state which ___ to the Mongol invasions of the 13th century.
a. is succumbed
b. has succumbed
When vs. WhileIdiomsAdverb
Next quiz: Superlative Degree (Adjective)
Choose the sentence that is written correctly.
A. Ambulances are the most fast emergency transport in USA.
B. Ambulances are the fastest emergency transport in USA.
C. Ambulances are the faster emergency transport in USA.
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