根据句子意思，用括号中所给汉语提示或英语单词的适当形式填空。在答题卡标有题号的横线上，写出空缺处所填单词的正确形式。（每空一词）
①Armstrong collected some rocks to take back to the earth for ____ (far) research.
②The books on the shelf are those ____ (visit).
③My parents have lived in Yangzhou since they got ____ (marry).
④Sometimes it requires courage to tell the ____ (true).
⑤Kate lives on the ____ (five) floor of that tall building.
⑥Look at the sign! We are not____(允许) to park cars here.
⑦If you step into this field, you will find many interesting ____ (发明).
⑧Our teacher often reminds usto pronounce words ____ (正确地).
⑨Gulliver's ship crashed ____ (撞) the rock and came to a stop.
⑩The coat costs so ____ (价格高) that I don't want it.
匀速行驶．若行驶中受到的摩擦阻力大小不变，则在加速过程中车速为
3时，汽车加速度的大小为