----How long has Sam been skating?------He for five hours.A have been skating B has been skating C was skating D has been skated
I often see him _______ uniforms.
China ______ many foods ______ Iraq during the war.
There will be _______ food for wildlife in the wetlands because of fishing.
The rain forests in this area _______ smaller.
The doctors did what they could _____ the dying man.