11．The chairman thought ____________ necessary to invite Professor Smith to speak
at the meeting．（　�。�
A．thatB．itC．thisD．him

分析 主席認(rèn)為邀請斯密斯教授在會議上講話是必要的．

解答 答案：B．根據(jù)真正賓語 to invite Professor Smith to speak at the meeting．可見空白處應(yīng)為形式賓語，縱觀選項，唯有it可擔(dān)當(dāng)形式主語，故選B．

點評 本題考查it 形式賓語，結(jié)合語義的基礎(chǔ)上便能選出正確答案．

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