The group of technicians are engaged i？

You are Master of a towing vessel engaged in towing three barges astern.The middle barge o

We are engaged in the development of real ________.

I believe engaging in paid work is acceptable ______ the conditions are safe, the hours ar

With the development of the society, more and more ordinary people are engaged in charity

The cultivated land in the U.S. makes up______of the total land, and people who are engage

Directions: In each of the following groups of words, there are four underlined letters or