1 feel that one of my main duties ______ a teacher is to help the students to become better learners. 
#4903
A
for
B
by
C
as
D
with
推荐题目
.It is no use ______ after you know your failure.
#4686
A
cry
B
to cry
C
crying
D
cried
 You will see this product made in this factory ______ wherever you go.
#4573
A
to be advertised
B
advertise
C
advertised
D
advertising
Rose asked Tom, “Did you see my purse?”  Rose asked Tom ___. 
#4658
A
whether that he had seen her purse
B
whether he had seen her purse
C
that whether he had seen her purse
D
that if he has seen her purse
He threw away all the ______ cigarettes, _______ to give up smoking for the sake of his health.
#4651
A
remained; determining
B
leaving; determined
C
remaining; determined
D
left; determining