Not until actually ________ with water shortage ________ appreciate the value of water to a region.
#80996
A
facing; one can
B
faced; can one
C
faced; one cannot
D
facing; cannot one
推荐题目
Out _________, still discussing the fashion show with great interest.
#82850
A
walked a crowd of young girls
B
did a crowd of young girls walk
C
were walking a crowd of young girls
D
a crowd of young girls were walking
If _____ carefully, the experiment will be successful.
#84616
A
do
B
does
C
done
D
doing
_____ you eat the correct foods _____ be able to keep fit and stay healthy. 
#82299
A
Only if; will you
B
Only if; you will
C
Unless; will you
D
Unless; you will
—I studied in the United States for 3 years. —_______.
#80720
A
So I did.
B
So was I.
C
So did I.
D
So do I.