Ancient Greeks were responsible for many of the _______ in science and other fields．
#6392
A
advances
B
progress
C
development
D
civilization
推荐题目
Tom succeeded, for he had made a great ______ and got over plenty of difficulties.
#6263
A
progress
B
force
C
energy
D
effort
Betty has a very tight _____ this weekend so she has turned down the dinner invitation.
#5068
A
schedule
B
headline
C
outline
D
incident