语法词汇练习 语法大全 语法详解 英语听力 
________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
下一题
推荐题目
My sister was angry ______ what he said.
#31777
A
as
B
because
C
because of
D
since
_____ you make a promise, you should keep it.
#32530
A
Though
B
Unless
C
Now that
D
Even if
They kept trying _________ they must have known it was hopeless.
#79919
A
if
B
because
C
when
D
where
—Dad, I've finished my assignment.—Good，and ________you play or watch TV, you mustn't disturb me.
#29979
A
whenever
B
whether
C
whatever
D
no matter
I thought I would be punished for the broken glasses _____ I ended up being praised for my honesty.
#31627
A
and
B
or
C
but
D
so