Telephone users sometimes complain about unreliable service and they consider unfair charges.
#31509
A
which
B
that
C
what
D
how
推荐题目
I have got a car, I don’t get as much exercise as I used to.
#30579
A
So long as
B
Even if
C
Now that
D
In case
I had just about given myself up for lost _________ I was spotted by a ship.
#30803
A
when
B
while
C
as
D
until
______ money is important, many teenagers say they want to do jobs they enjoy.
#30956
A
Because
B
Unless
C
If
D
Although
_______the people have become masters of their country _______ science can really serve the people.
#32678
A
It is only then; that
B
It was that; when
C
It is only when; that
D
It was when; then