【C18】A．fruitfulB．versatileC．adeptD．fertile

What do we learn about deserts from this text？A．Deserts can change into green and fertile

The farmers have taken strenuous pains to turn the ______ land into fertile fields.A．baldB

【C19】A．forceB．abilityC．capacityD．fertility

One must try his best to______to the new environment in his life.A．adaptB．adoptC．adeptD．ap

A．wholesomeB．versatileC．abnormalD．unlawful

Farmers use chemicals and fertilizers in order to