1. I have drink a 3 glasses of milk this morning.
2. it needs to be input 3 spoonfuls of sugar in a beef soup.
3. My sister had 3 pieces of cake in her birthday.
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1. I have drink a 3 glasses of milk this morning. = drank
2. it needs to be input 3 spoonfuls of sugar in a beef soup. = You need to put .. into
3. My sister had 3 pieces of cake in her birthday. = on