I don't know（）it was that answered the phone this morning
A: who
B: why
C: how
D: that
A: who
B: why
C: how
D: that
举一反三
- I really don't know _____ to thank you. A: who B: why C: what D: how
- I don’t know the reason ______ he is late. A: that B: why C: which D: how
- —Who is he Is he our new teacher —I’m sorry. I don’t know ______ and ______ he is. A: who; what B: who; how C: how; what D: where; how
- I don’t know ____ Jane was late for school this morning. A: who B: what C: whom D: why
- I don’t know who ________ the boy stand here. How poor he looks.[1分]