__________ to sun, rain and wind for a long time, the stone split(裂开).
#101764
A
Being exposed
B
Having exposed
C
Exposed
D
To expose
推荐题目
---- How long ____ at this job? ---- Since 1990.
#102931
A
were you employed
B
have you been employed
C
had you been employed
D
will you be employed
—Jack, did you see my son Harry just now?—No,Mrs. White. I _______computer games.
#100869
A
have played
B
am playing
C
had played
D
was playing