Question

Mia

この問題（８〜１０）答えはわかっているのですが
その意味がよくわかっていません誰か、解説をください

mportant U1
(8) The plane to New York will be leaving () ten minutes.
✪ by
2 from
3 in
(9) For all his learning, he is a dull companion to ( ).
be spending time
2 spend time
3 spend time with
4 spending time with
later
(10) The instructions were so ( ) that I was not able to get to the hotel.
1 confuse
2 confused
3 confusing
4 to confuse
(104)
4