The ____ boys were last seen ______ near the West Lake.
#95487
A
missing ; play
B
missed; played
C
missed ; to play
D
missing; playing
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The farmers thought of ways ________ their trees.
#97071
A
of protect
B
protecting
C
to protect
D
to protecting
The discovery of the stolen car led to    .
#91598
A
the thief having caught
B
the thief catching
C
the thief being caught
D
the thief to be caught
. The workers do nothing but _______ tea and talk to each other.
#97209
A
drinking
B
to drink
C
drink
D
are drinking
Not only should you get used ______ under difficult conditions but you also you pay more attention ______ your work well. 
#98934
A
to work, to do
B
to working, to doing
C
to work, to doing
D
to working, to do