Accustomed to ______ the steep mountain, he had no difficulty reaching the top. 
#92617
A
climbing
B
climb
C
having climbed
D
have climbed
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The students ages ____ 15 to 18.
#92794
A
range
B
ranged
C
range from
D
ranges from
      takes me several hours      my tasks. Because they are too difficult.
#92076
A
It , to finish
B
That, to finish
C
It ,finishes
D
It ,finishing