It was a（ ）moment for my cousin when she shook hands with the President.

“You haven’t seen him for over a year ?” he sounded（ ）.

For many Americans , it is their lifelong dream to buy a（ ）two-storied house with a garden. 

John could not give a（ ）explanation for his strange behavior.

After so many years, their handwritten signatures on the contract are still（ ）.

The fall in the number of deaths from heart disease is greatly（ ）to improvements in diet.

When the sales staff finished with their presentations, the manager asked some（ ）questions on the project.

​They had a（ ）escape when their car plunged into a river.

Honeybees use one of the most（ ）communication systems of any insect.