6. A) expand
B) to extend
C) expanded
D) extended
7. A) called
B) calling
C)to call
D) calling on
8. A) to
B) for
C) with
D) by
9. A) what
B) that
C) which
D) this
10. A) put off
B) canceling
C) destroyed
D) canceled
11. A) before
B) in advance
C) ahead of
D) later
12. A) introduced
B) brought in
C) taken in
D) adapted
13. A) advanced
B) before
C) ahead
D) prior to
14. A) lately
B) later
C) late
D) latter
15. A) despite of
B) despite
C) in spite
D) although
参考答案: DACBD CADCD BAABB
