高考英语30分钟专题突破（16）：
it 的用法
1. Is ？necessary to complete the design before National Day
A. this B. it C. that D. he
2. Miss Smith thought a great honor to be invited to speak to all of us.
A. that B. this C. it D. her
3. Does ？matter if he can’t finish the job on time
A. this B. that C. he D. it
4. He felt to work for human rights and progress.
A. it his duty B. his duty C. that is a duty D. that is his duty
5. He didn’t make clear when and where the meeting would be held.
A．this B．that C．it D．these
6. Sometimes advertisements make possible for companies to sell the customers
