Ⅰ.单句语法填空
1．He said he ________ see a woman in black walking out of the office building just now.
did [句意：他说他的确看到了一个黑衣女子从办公大楼走出来了。分析句子可知，此处是对谓语动词see的强调，根据时间状语“just now”可知，应该用did表示强调。]
2．Hardly ________ (have) she sat down when she heard someone knocking the door.
had [句意：她刚刚坐下，就听到有人敲门。hardly... when ... 表示“一……就……”，hardly放在句首，用部分倒装。从句使用一般过去时，主句用过去完成时。故填had。]
3．Are you free tonight? If ________， I'd like you to meet Tom, my new friend from the States.
so [句意：今晚你有空吗？如果有空的话，我想让你见见我的新朋友来自美国的汤姆。if so “如果这样的话”，so替代上文的全部内容，避免重复。 ]
4．When ________ (return) home, I met my old friend Paul in the street.
returning [句意：当我回家时，我在街上遇到了我的老朋友保罗。return的逻辑主语与句子主语I一致，且I与return之间是逻辑上的主谓关系，故填现在分词形式。when returning home是when I was returning home的省略。]
