工业上合成氨时一般采用500℃左右的温度，其原因（） ⑴适当提高氨的合成速率⑵提

请根据句意从方框中选择合适的动词，并用其适当时态填空，使句子通顺。

fall   think   prepare  pass   say

                           

 
小题1:Emily is very kind and she never __________ any bad word about her classmates.
小题2:—What’s the terrible noise, Lucy?
—The neighbours ______ for a birthday party.
小题3: —__________ Edward __________ the driving test?
—Yes, he practised for a long time.
小题4:The old man was riding along the river when he __________ into the water.
小题5:—I have to be off now.
—What a pity! I ___________ you could stay with us a little longer.