Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

Cesarean section are three to ____ times more likely for pregnant women with diabetes.
four

Some plants even have ____ leaves or small seasonal leaves that grow after it rains.
no

Atoms gain or lose electrons to get ____ electrons in their outer shell .

eight