智慧职教: I have no idea （ ） he will be back.
举一反三
- I have no idea he will come back home.
- I have no idea __________ he will be back. A: when B: what C: that D: where
- I have no idea ________ he will be back. A: when B: what C: which D: who
- I have no idea _______. A: when he will come back B: when come back will he C: when will he come back D: will he come back when
- I have no idea _______ he will be back or not.（ ） A: whether B: that C: When D: where