一、单选题（共 50 道试题，共 100 分。）V
1. — (), but I seem to have misplaced your scarf.— Oh, that’s all right.
A. I am fine.
B. I am sorry.
C. It’s nice of you.
D. I am OK.
满分：2 分
2. Oxygen is often stored as a liquid, although it is used () as a gas.
A. primarily
B. seldom
C. rarely
D. sometimes
满分：2 分
3. — It’s been a wonderful evening. Thank you very much.
A. Just so-so.
B. No, thanks.
C. My pleasure.
D. It’s OK.
满分：2 分
4. The new system will be () with existing equipment.
A. capable
B. controllable
C. compatible
D. considerable
满分：2 分
5. She behaved () she were the boss.
A. as
B. as if
C. even if
D. even though