Questions 16-20
Emma was excited ___(16)___ nervous about giving her first lecture on ___(17)___ science. She spent a lot of time preparing her notes and planning how to explain the basics of ecosystems clearly. When she started the lecture, she saw the students listening carefully, which made her feel more confident. She used simple examples, like how different animals ___(18)___ with each other in a forest, and asked questions to keep the students involved. ___(19)___, she was pleased with how the lesson went. At the end, the students gave positive feedback, which made her feel happy and proud. She left the classroom ___(20)___ teaching again soon.
【題組】16.
(A) as
(B) of
(C) or
(D) yet