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.

Q: Dholes are highly social animals and live in packs of about ____ dogs.

A: ten
****
Q: Birds have ____ beak, two wings, and two feet.

A: one
****
Q: Electric motors have very flat torque curves down to ____ speed.

A:
zero
****