Do you think it __for us so learn to wait?--yes,I think so.A.well B.surprised c.exzctly d.necessary

Do you think it __for us so learn to wait?--yes,I think so.A.well B.surprised c.exzctly d.necessary
Do you think it __for us so learn to wait?
--yes,I think so.
A.well
B.surprised
c.exzctly
d.necessary

Do you think it __for us so learn to wait?--yes,I think so.A.well B.surprised c.exzctly d.necessary
更正：
①learn其实是long；
②exzctly其实是exactly.
A,不错,好；
B,受到惊吓；
C,准确的；
D,必要,句式：It's necessary for sb to do sth 对于sb做sth是必要的
所以选D