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]: Heart attacks occur most often around ____ in the morning.
[A]: five


[Q]: Norplant implants are ____ matchstick size rods that are inserted into the upper arm.
[A]: six


[Q]: Some amphibians dig deep burrows and stay there for up to ____ months at a time.
[A]:
nine