A．be
B．am
C．was
D．were

Section A
Directions: This section is to test your ability to understand short dialogues. There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. The dialogues and the questions will be spoken only once. When you hear a question, you should decide on the correct answer from the 4 choices A , B, C, and D.
听力原文：W: John, what are you doing on your computer？ Don't you remember your promise？
M: Yes, I remember. I'm not playing games but typing my homework.
Q: What is the probable relationship between the two speakers？
（1)
A．Mother and son.
B．Teacher and student.
C．Husband and wife.
D．Boss and clerk.

__ we have finished the book, we shall start doing some exercises.
A．For now
B．Since that
C．Now that
D．Since already

For all its extremes, Venus is a（n) incalculable laboratory for researchers studying the weather and climate of earth.
A．invaluable
B．valuable
C．value
D．valueless

His______behavior. made everyone nervous. He was always rushing to open doors and perform. other small tasks, apologizing unnecessarily for any inconvenience that he might have caused.
A．oblivious
B．observant
C．obsequious
D．obsolescent

Because this area has a high rate of crime and unemployment, there are only people moving out.
A．incentive
B．incident
C．incidence
D．initiative