_______these coins are of different shapes, sizes and colors, they all date back to a long, long time ago.
#32529
A
Since
B
Unless
C
Once
D
While
The old man was telling a funny story, surrounded by many kids, _________ with fascination.
#32532
A
all of whom listened
B
all of whom listening
C
all of them listened
D
all of them were listening
Staff are allowed to take a ten-minute break every two hours to relax, use the bathroom or do ___________ else is necessary.
#32537
A
something
B
anything
C
whatever
D
what
Bungee jumping is an exciting activity, very popular among young adults, ___________ courage matters more than strength.
#32538
A
whose
B
that
C
of which
D
where
Remember when you learned to water ski, David? _________ you skied more, you got better and better. It’s the same with language study.
#32540
A
although
B
while
C
as
D
unless
—Did your father phone you shortly after the accident?—No, it was a fortnight ________ he gave me a phone call.
#32542
A
since
B
when
C
while
D
before
John’s success has nothing to do with good luck. It is years of hard work _______has made him a great scientist today.
#32544
A
that
B
when
C
which
D
why
children believe they can succeed, they will never become totally independent．
#32545
A
If
B
Though
C
Unless
D
When
There is no doubt _________ the world climate has been changing in recent years.
#32547
A
that
B
what
C
if
D
whether
He looks so weak and pale ________ suffering from a serious illness.
#32549
A
as if
B
as long as
C
now that
D
even if
Scientists say it may be one year or so ________ it is possible to test the new medicine on human patients.
#32551
A
when
B
after
C
before
D
since
The boy was so tired that he fell asleep ______ his mother could take off his clothes．
#32555
A
before
B
after
C
while
D
when
------What do you think of her? ------I thought her nice and honest I met her.
#32556
A
the first time
B
for the first time
C
first time
D
by the first time
__________ printed, this science fiction will be popular among the students.
#32558
A
Before
B
Unless
C
Although
D
Once