(2013·宁夏银川一中高三第四次考试)________ scores of times, but he still couldn't understand it.
#30539
A
Having explained
B
Having been explained
C
Though it was explained
D
It was explained
推荐题目
We don’t doubt _______ we will complete all the projects before the year 2010.
#32433
A
when
B
if
C
that
D
whether
I do all housework every day ______ my husband Bob just washes the dishes now and then.
#32514
A
or
B
while
C
when
D
however
_______ I paid a visit to this scenic spot, I was deeply attracted by its beauty.
#33509
A
Firstly
B
For the first time
C
The first time
D
At first
_______ makes the book so extraordinary is the creative imagination of the writer.
#31007
A
That
B
What
C
Who
D
Which