People in Nome all had diphtheria, a disease that spreads very fast. If ________, it would produce a powerful poison that would kill the patient.
#95630
A
untreating
B
to untreat
C
untreated
D
untreat
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_______ the secret of nature, the young scientist has little time for entertainment.
#91721
A
Devoted to bring out
B
Devoted himself to bringing out
C
Devoted to bringing out
D
Devoting to bring out
 It’ll do harm to you to lie in bed _____. 
#98248
A
read
B
and reading
C
to read
D
reading
______ over 90 goals this year, Messi (梅西) has won the Golden Ball for the fourth time.
#92689
A
Having shot
B
When shooting
C
After shot
D
When shoot