Is oxygen the only gas _______ helps fire burn?
#95032
A
that
B
/
C
which
D
it
推荐题目
My father moved to Hainan in _____, when he was in ______.
#92996
A
the early 1990s; his thirties
B
early 1990s; his thirties
C
the early 1990’s; his thirty
D
early 1990’s; his thirty
--- _____ the population of China? --- About 1.3 billion.
#93620
A
What is
B
How many are
C
How much is
D
What are
—English has a large vocabulary, hasn’t it?—Yes. _____ more words and expressions and you will find it easier to read and communicate.
#91892
A
Known
B
Knowing
C
To know
D
Know
--- How many times have you been to China?--- In fact, it is the first time that I ______ here.
#92069
A
was
B
am
C
had been
D
have been