― (), but I seem to have misplaced your scarf.― Oh, that’s all right.

― (), 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
      满分：2  分
6.  Obsessive () can be very irritating.
A. perfectionism