Glass is _______ and must be handled with great care.
#18573
A
sensitive
B
smooth
C
flexible
D
fragile
推荐题目
From the ______ expression on his face we can guess something ______ must have happened to him.
#18532
A
confused, confusing
B
confusing, confused
C
confused, confused
D
confusing, confusing
They looked at each other, ______. 
#18641
A
Astonishing
B
astonished
C
to astonish
D
astonishingly