i looked up and noticed a snake ____its way up the tree to catch its breakfasta to wind b wind c winding d wound

i looked up and noticed a snake ____its way up the tree to catch its breakfasta to wind b wind c winding d wound
i looked up and noticed a snake ____its way up the tree to catch its breakfast
a to wind b wind c winding d wound

i looked up and noticed a snake ____its way up the tree to catch its breakfasta to wind b wind c winding d wound
c

C
notice……v.+ing/v.+ed
因为这里wind和snake是主动关系，所以用notice……v.+ing，因此选C

C
notice sb. doing sth

B