Certain chemical elements untied with each other to form a variety of chemical_____.
#279
A
changes
B
compounds
C
reactions
D
substances
推荐题目
Life would be happier if we could only be born at the age of eighty and ________reach eighteen.
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A
entirely
B
gradually
C
finally
D
rapidly
The poor man, ______, ran out of the dark cave.
#88420
A
trembling and frightened
B
trembled and frightening
C
trembled and frightened
D
trembling and frightening
My uncle ___________ a farmer. Now he is a driver.
#60542
A
is used to
B
is used to be
C
used to being
D
used to be
一 is your favorite sportsman?一It's hard to say．We11，I like Lin Shuhao very much．
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A
How
B
When
C
Who
D
What
-Do you know Paris? -Yes, it is _______capital of _________.
#27923
A
a , France
B
the; France
C
the; French
D
a ; French