I am sorry but I (not to understand). Can you speak louder? A. did understand B. don't understand C. aren't understanding D. doesn't understand - Grammar | English Grammar Quiz

I am sorry but I (not to understand). Can you speak louder?
A. did understand
B. don’t understand
C. aren’t understanding
D. doesn’t understand

Random Topics:
Yes-No Question Past Perfect Continuous Tense Each or Every

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