□54÷6,要使商是三位数,□里可以填 ;要使商是两位数,□里可以填 .
Thanks to the of the smart phone,it's convenient to take photos anytime.(invent)
If you red and yellow,what colour will you get?(mixture)
On days,leaves fall on the ground and the road looks beautiful.(wind)
Lily asked her son to close the door in order not to disturb others.(soft)
The boy started to live in school and learn to manage time by .(he)