题目内容
The chairman thought _____ necessary to invite Professor Smith to speak at the meeting.?
| A．that |
| B．it? |
| C．this |
| D．him? |
B
此题考查学生对it的掌握和运用能力。it作形式宾语,代替后面的不定式to invite Professor Smith to speak at the meeting。that指代前面已发生或者提到的事,或者用于对比作远指代词;this指代将要做的事或用于对比表近指。this和that在句中都有自己明确的意思。?
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