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

A．By taking a course.
B．Very well.
C．In the morning.
D．In the library.

Which of the following is NOT an example of special effects in this passage？
A．Making the fish stop swimming.
B．Causing the fish to swim away.
C．The flying of a military plane.
D．The sailing of an 165-foot-long boat.

—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．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.

The passage implies that if the air leakage came from the valve, ______.
A．there is no need to remove the inner tube
B．you could solve the problem by putting spit on it
C．you would still need to examine the inner tube
D．there would be no way to solve the problem