Farmers are usually busy getting the crops in.请问为什么getting要加ing呢?

Farmers are usually very( )in the season? Farmers are usually busy getting the crops in.请问为什么getting要加ing呢? The farmers are working______the fields. There are two farmers ( ) the apple trees the farmers are busy ( )《pick》 apples. they farmers are连词成句 they farmers are(?)连词成句 Farmers are planting v_____ in the field. The farmers are working in the f______........................................................................................................ The farmers are very () in autumn. in fall,farmers are very bus. Pandas are usually heavy Are they helping the farmers ___ the work? the farmers busy every are day(?)连词成句 Potatoes are()in the field by the farmers Look!The farmers are working in the f____. Look!Some farmers are working in the tomato f____.填空 the farmers are busy (harvesting).( 对划线部分提问）