问题
选择题
Whenever a patient needs an injection of Penicillin, the doctor does need to make sure whether his patient is ___ to the medicine.
A．sensitive
B．addicted
C．allergic
D．efficient
答案
答案：C
本题考查形容词。sensitive敏感的；addicted 上瘾的；efficient有效的；be allergic to讨厌 ...，根据句意选C。