4. Most of the people ____ to the party were famous scientists.
A. invited
B. to invite
C. being invited
D. inviting
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5. The first textbooks ____ for teaching English as a foreign language came out in the 16th century.
A. having written
B. to be written
C. being written
D. written
6. The news sounds ____.
A. encouraging
B. encouraged
C. encourage
D. to encourage
7. —How did Bob do in the exams this time?—Well, his father seems ____ with his results.
A. pleasing
B. please
C. pleased
D. to please
8. —How did the audience receive the new play?—They got very ____.
A. excite
B. excited
C. excitedly
D. exciting