We should drink around ___ of water per day.
We should drink around ___ of water daily.
We should drink 10 glasses of water in a day to stay fit. If one glass contains 210 ml of water, then we should drink _____ l to stay fit.
We should drink at least 10 glasses of water in a day to stay fit. If one glass contains 210 ml of water, then 10 such glasses amount to _____ mL of water.