问题
选择题
24. He is very _______ about his chance of winning a scholarship this semester.
A．optional
B．obvious
C．optimistic
D．conventional
答案
C。
本题考查形容词。Optional选修的；obvious显然地；conventional传统的。 be optimistic about sth. “对……持乐观态度”。句意：他对他这学期获得奖学金的机会非常乐观。