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(qǐng)斯密斯教授在會(huì)議上講話是必要的．

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

點(diǎn)評(píng) 本題考查it 形式賓語(yǔ)，結(jié)合語(yǔ)義的基礎(chǔ)上便能選出正確答案．

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