单选题 She asked ______ I had bought the book.

单选题 I don't know ______ he will attend the meeting (or not).

单选题 I don't know ______ he is doing now.

单选题 The fact ______ he arrived in Shanghai yesterday evening.

单选题 ______ he will come hasn't been decided yet.

单选题 Let's ask him ______ dictionary he refers to.

单选题 The problem is ______ we can get there on time.

单选题 She asked me ______ I had finished my homework.

单选题 He told me ______ he had bought a new car.