It’s necessary ______ us to keep our pets clean everyday.
How many types of business meetings?
______ hard work it is!
Your sister _______to visit you quite ofen,didn't she?
We thank you _____ for you cooperation.
The reason that his property was confiscated by the country, it ____, was that he was involved in a lot of fraudulent activities during the war.
The doctor ____ is leaving for Africa next month.
What makes a meeting effective?
Some concepts may be difficult to grasp chiefly because they may be unfamiliar or _____ideas, opinions which we already hold.
All of us know, color-blind people often find it difficult to __ between blue and green.