单选题 I don't know _____. —It is said that he is from London.

单选题 Could you tell me _____ she is looking for?

单选题 I don't know _____ he will come tomorrow.

单选题 When I arrived home in the evening, my sister _____ on the phone.

单选题 I fully understand _____ my mother has told me.

单选题 My brother and sister _____ playing tennis at 11 am yesterday.

单选题 He asked me _____ told me the story.

单选题 I saw you in the park yesterday. You _____ a book on the grass.