14. Do you remember the promise ____ you will do the work all by yourself?

13. ____ will attend the meeting is not known yet.

12.____ many students will be invited to the celebration is not decided yet.

11. The headmaster said, “____ I want to know is how you are going to carry out your plan.”

10.____ he will not pass the examination is certain.

9. Mother would like to know ____ present is hers.

8. ____ Mary found her dictionary or not was still unknown.

7.The trouble was ____ the little boy lived.

6. It is important ____ we should be both red and expert.

5. He told me the reason ____ he was late.