________scores of times, but Derek still couldn’t understand how to use past participle in a concrete situation.
#32441
A
Having explained
B
Having been explained
C
Though it was explained
D
It was explained
推荐题目
Your uncle seems to be a good driver: _______, I wouldn’t dare to travel in his car.
#80194
A
even so
B
even though
C
therefore
D
so
You can borrow my car ________ you promise not to drive too fast.(2012·江西，31)
#30441
A
unless
B
even if
C
in case
D
as long as
Junk messaging has been a headache for years, ＿＿the action taken by the authori-ties has not yet produced the results expected
#30981
A
as
B
but
C
so
D
before
—People often don't appreciate what they have, do they? —No, _____ they lose it.
#30099
A
if
B
after
C
when
D
until