______
A. They have two great advantages.
B. They have quite easy grammar.
C. They have many different endings for certain words.
D. They are very interesting
______
A. He works on a part-time basis for the company
B. He has not worked in the sales department for long
C. He is not familiar with the exact details of the goods.
D. He has become somewhat impatient with the woman
______
A. Make inquiries with some other companies.
B. Report the information to her superior.
C. Pay a visit to the saleswoman in charge.
D. Ring back when she comes to a decision.
______
A. No one knows for sure when they came into being.
B. No one knows exactly where they were first made.
C. No one knows for what purpose they were invented.
D. No one knows what they will look like in the future.
______
A. Measure the speed of wind.
B. Give warnings of danger.
C. Pass on secret me.
D. Carry ropes across rivers.