People in some countries waste water______ people in others don’t have enough to drink.
#31420
A
while
B
because
C
if
D
so
Having checked the doors were closed and ______ all the lights were off, the boy opened the door to his bedroom.
#31421
A
why
B
that
C
when
D
where
______ is often the case is that Tom doesn’t study hard and fails in passing an exam.
#31422
A
That
B
What
C
It
D
As
A double-decker sleeper coach fell off Changjiang Bridge in Jingzhou. It was because it tried to turn ___________away from a motorcycle that it crashed killing 14 passengers.
#31423
A
merely
B
abruptly
C
exactly
D
cautiously
The agent was about to sign his name to the document_______ , to our surprise, a stranger broke in to prevent him.
#31424
A
while
B
when
C
as
D
until
One Friday, we were packing to leave for a weekend away _____ my daughter heard cries for help.
#31425
A
after
B
while
C
since
D
when
________ you've got a chance, you should make full use of it.
#31426
A
Now that
B
Even if
C
Although
D
As soon as
Baseball requires teamwork _______ tennis is an individual sport.
#31427
A
while
B
when
C
yet
D
although
Some people like coffee, _____others like tea. It’s all a matter of personal taste.
#31429
A
which
B
however
C
what
D
while
— How long has your brother been working in this factory? — he graduated from college.
#31430
A
When
B
By the time
C
Until
D
Ever since
Allow children space to voice their opinions _____ they are different from yours.
#31431
A
as if
B
even if
C
unless
D
until
Sorry to say it will be years _______ we really have classes here with only 25 students.
#31432
A
since
B
that
C
when
D
before
___________Mrs Smith worked day and night, he found it difficult to make enough money to support such a large family.
#31433
A
Since
B
If
C
Once
D
Although
The number of private cars in urban areas should be limited ___________the number of public buses should be increased.
#31434
A
when
B
while
C
unless
D
until
I’d like to study law at university _____ my cousin prefers geography.
#31435
A
as
B
though
C
if
D
while
--- Do you really think I can achieve my goal ? --- Absolutely .___ you give up halfway .
#31436
A
If
B
Unless
C
Since
D
because
—My son is addicted to computer games. He is hopeless, isn't he?—Yes, _____ he is determined to give up and start all over.
#31438
A
if
B
when
C
even if
D
unless
---- Are your family ready for rafting?----Yes, I really want my children to experience that they are young.
#31439
A
\
B
if
C
unless
D
while