___ I reit worked in all conditions ____ in water andextreme heat.

I asked him whether he had done all the work himself ________ whether he had had any assistance

People have planted a lot of trees and grass in order to ____ wind and sand in the desert.

He had a lot of friends, only a few of ______ wereinvited to his wedding.

Iraq has _____ too many wars since 1990s, making his people _____ a lot.[ ]