2017年河北省献县英语中考《常考指示代词》练习含答案 1、 is difficult to see and hear at the back. A. This B. He C. It D. Those 2、 ________ is believed that the light bulb is one of the most helpful inventions. A. He B. It C. This D. That 3、 The performance of Class A students is much better than _______ of Class B students. A. this B. those C. one D. that