Although he was in poor health, Robert succeeded other more famous engineers failed.
#30585
A
which
B
that
C
what
D
where
推荐题目
—What should we pay more attention to if we go north in winter, Mum?—Nothing much. Take warm clothes_________ the weather is cold.
#80022
A
as long as
B
now that
C
if
D
in case
The US auto (汽车) industry, a symbol of the American spirit, narrowly escaped a sudden breakdown, _____ China has become the world’s top automaker.
#34350
A
when
B
while
C
but
D
although
John thinks it won’t be long __________ he is ready for his new job.
#31238
A
when
B
after
C
before
D
since
_______he lives in a large flat and owns much money, he doesn’t seem as happy as before．
#34802
A
Before
B
Whether
C
Unless
D
While
_____ basic first-aid techniques will help you respond quickly to emergencies.
#31190
A
Known
B
Having known
C
Knowing
D
Being known