22. Mary: I didn’t do well on my math test.Mom: If you get any question, you should ask yourteacher or classmates for help.Mary: But….. I don’t know ____. Actually, Idon’t have any good friend at school.Mom: Maybe you can try to ask Nancy for help. Shelooks nice and friendly.
(A) who to ask for help
(B) who can I ask for help
(C) how I should do
(D) where I can ask