We should keep it in mind that beneath our feet ______ that our life depends on for food and clothing.
#82075
A
lies the earth
B
lying the earth
C
does the earth lie
D
the earth is lying
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(2012·浙江高考)Had they known what was coming next, they ________ second thoughts.
#79773
A
may have
B
could have
C
must have had
D
might have had
_______right away, you would arrive there by 6 o’clock P.M.
#84562
A
Would you start out
B
Will you start
C
Were you to start out
D
If you’ll start out
After the patients went into the office,__working. 
#83891
A
only a doctor did they see
B
only a doctor saw they
C
only a doctor they saw
D
only a doctor had they seen
 This is an illness that can result in total blindness if_______. 
#84607
A
to leave untreating
B
left untreated
C
leaving untreating
D
is left untreated