This has the verb to be in front of it, so it should be in the progressive form, "eating". Verb to be = am/are/is/was/were

Yukari-sama has Grade 4 certification on the English Proficiency Test, so English is a strong point of hers! Grade 4 is the second worst level of proficiency on the STEP test.

Yukari-sama is also a qualified arc welding operator, so she can weld, too.