Agroup of mosquitoes which carry malarial parasitic

So i have a lot of answers answered but it says i still need to answer more questions. why is it doing that? how many questions need to be answered?

Hot5, endomondo, gympact, and runkeeper are popular a.) energy drinks b.) vigorous-intensity exercise c.) fitness apps d.) moderate-intensity exercise e.) fitness tests

The frequency in wich you perform certain exercise depends on the blank of the exercise