It’s hot here. Why not ________your coat?

Farmers here _________keeping the soil rich and _________diseases.

 It is a good plan in theory, but it _____ to be seen whether it works in practice. 

Li Na had managed to ______ in motion an upsurge（高涨）of students learning tennis across Asia.

Tigers in the state often compete with villagers living close to the reserves for resources, often________ direct conflict．