[单项选择]Why does the man wait for a long time
A. Because there are fewer workers on duty.
B. Because the man comes late.
C. Because the bank opens late.

[单项选择]

Why does the man wait so long
A. Because the waitress is too busy.
B. Because the duck takes quite a while to prepare.
C. Because he hasn’t ordere

[单项选择]After Man has dreamed about flying for a long time. Michael Moshier is a dreamer. He invented the Solo Trek.
The Solo Trek had a 120 horsepower engine with twin fans. Only one person flies. As you fly above the roofs, you lean a little forward. You can see everything under you. You are flying like Superman.
Michael Moshier looked at the jet belt and the rocket belt that was developed 20-30 years ago. Nothing ever came from them. People still can’t fly.
Inventors have tried to make it easy for people to fly. Paul Moller has been working on his flying car for 30 years. He now says it is ready for tests. It would take off and land vertically, go 600 miles an hour, and deliver 20 miles to the gallon. A computer would do the actual flying. He says it could be sold next year for about a million dollars.
NASA is working with Moshier to help develop his flying machine. The first users are likely to be military.
It’s been 50-years since Robert Fulton invented his airphi
A. a solar powered engine
B. engine-powered twin fans
C. large flapping wings
D. rotating blades

[单项选择]How long does the mother wait for the young to hatch
A. Five weeks.
B. Ten weeks.
C. Twelve weeks.
D. Fifteen weeks.

[单项选择]How long has the man been waiting
A. For five minutes.
B. For fifty minutes.
C. For an hour.
D. For fifteen minutes.

[单项选择]How long will the man be away
A. For many weeks.
B. For many years.
C. For three weeks.

[单项选择]Why does the man say you waste time waiting around doing nothing（）
A. You may get to the airport too early. 
B. You may spend a lot of time travelling to the airport. 
C. You may wait for some time on the plane before taking off.

[单项选择]
How long is the man’s vacation
A. (A) One week.
B. (B) Two weeks.
C. (C) Three weeks.
D. (D) Four weeks.

[单项选择]How long has the man stayed in Beijing
A. For six weeks.
B. For six months.
C. For six years.