1．I hope that ________ will be fine tomorrow.
答案：it
2．Tom has failed in the exam. Have you heard about ________？
答案：it
3．They found ________ pleasant that they worked with us Chinese.
答案：it
4．It struck me ________ I had ever seen him somewhere before.
答案：that
5．________ is reported that 16 people were killed in the accident.
答案：It
6．________ is no use trying to persuade him to have a holiday because he is a workaholic.
答案：It
