I don’t know the reason ______ he is late.
举一反三
- I don’t know the reason he is late. A: that B: which C: weather D: why
- I don’t know the reason ______ he is late. A: that B: why C: which D: how
- I don't believe the reason ______ he has given for his being late.
- I don't know the reason _____ he looks unhappy today.
- He wanted to know the reason _____ I was late. A: as B: for C: why D: because