1 . 用if, whether, when, 或how完成下列宾语从句
1. Can you tell me ________ we will have the meeting this afternoon?
2. I can't say ________ he will come on time or not.
3. She asked me ________ I could help her with her English.
4. I really don't know ________ you made the model ship by yourself.
5. —Do you know ________ the train leaves?
—Yes. It leaves at nine o'clock.