He doesn’t know ______ to stay or not.
A: whether
B: if
C: either
D: if he will
A: whether
B: if
C: either
D: if he will
举一反三
- He doesn’t know _________ (if / whether) to stay or not.
- He doesn't know ____to stay or not.
- He doesn't know____ to say or not. A: if B: .either C: whether D: if he will
- He didn’t know ________ or stay at home. A: if to go B: to go C: either to go D: whether to go
- He didn’t know ______ or stay at home. A: to go B: either to go C: if to go D: whether to go