It was       problem that       of the students could work it out.
#35633
A
so hard a ; a few
B
such a hard ; few
C
such hard a ; few
D
so a hard ; a few
推荐题目
---I can’t find my pen. ---___ you put it in your book.
#35550
A
May
B
Maybe
C
Sure
D
Of course
I will come back to see you             next week if I am free.
#35933
A
sometimes
B
some time
C
some times
D
sometime
If you want to get good grades, ____________, you should listen to the teacher _________ in class.
#35684
A
at first; careful
B
first of all; carefully
C
for the first time; careful
D
first of; carefully