翻译
87. Because of the noise outside, Nancy had great difficulty __________________ (集中注意力在实验上).
88. The manager never laughed; neither __________________ (她也从来没有发过脾气).
89. We look forward to __________________ (被邀请出席开幕式).
90. It is suggested that the air conditioner __________________ (要安装在窗户旁).
91. The 16-year-old girl decided to travel abroad on her own despite __________________ (她父母的强烈反对).
参考答案:
87. (in) concentrating on the experiment/ focusing her attention on the experiment.
88. did she become angry/did she lose her temper before.
89. being invited to attend the opening ceremony.
90. (should) be fixed/installed by the window
91. the strong opposition of her parents/ her parents’ strong opposition.