根据中文意思完成句子。

小题1:你最好买一本英语词典。

_________  buy an English dictionary.

小题2:我爸爸过去常常开车上班，现在坐公交车了。

My father_____________  go to work by car, but now he takes the bus.

小题3:大家正盼望着暑假呢。

We_____________ the summer holiday.

小题4:我一读完这本书就还给你。

I will return the book to you___________________ it.

小题5:北京园博园每天下午六点才关门。

Beijing Garden Expo Parks______________________ six o'clock in the afternoon every day.

再生温度过低的原因及处理？