A U.S. military airplane followed the boat because ______.
A.the boat was on a dangerous voyage
B.the boat was from an enemy country
C.the boat looked like a ship from an unknown country
D.it was the effect that the director wanted
The passage is mainly about ______.
A.a cheap way to get energy
B.the location of recycling plants
C.new ways of recycling waste
D.the word rubbish could lose its meaning
A.By taking a course.
B.Very well.
C.In the morning.
D.In the library.
A.Listen halfheartedly to the teacher in class.
B.Pay attention when teacher speaks English.
C.Follow the teacher's spoken English.
D.Follow the teacher's advice on speaking English.
—When shall we meet again?
—"Make it __ day you like; it is all the same to me".
A.one
B.any
C.another
D.some
A.She is surprised that Carnegie thought his plan could succeed.
B.She understands why Carnegie proposed his idea.
C.She doubts whether Carnegie was serious about his plan.
D.She regrets that Carnegie's plan did not succeed.