— Why are you so popular with your students?— As a teacher, I seldom give my students so difficult a problem ____ they cannot work out.
#4683
A
as
B
that
C
if
D
which
推荐题目
On Halloween, Children in costumes ask for candies ____________ shouting “ Trick or Treat”.
#4612
A
from door to door
B
from one door to door
C
from one door to one door
D
drom door to another
My parents don’t mind what job I do I am happy.
#5003
A
even though
B
as soon as
C
as long as
D
as though
Whoever _____ a new idea of how to work out the puzzle will be given a prize.
#4660
A
comes up
B
comes up with
C
comes out with
D
comes with
________ is reported in the newspaper, talks between the two countries are making progress.
#4956
A
It
B
As
C
That
D
What
The collapse of the World Trade Centre has put US economy in a difficult ___________.
#4935
A
occasion
B
case
C
situation
D
background