华氏温度f与摄氏温度c:It,s easier to keep a separate notebook for each-with his name in large letters on the cover

It,s easier to keep a separate notebook for each-with his name in large letters on the cover It,s easier to keep a separate notebook for each-with his name in large letters on the cover It’s often easier to make a promise than to _______ [翻译] [词类转换]Clear across the board,it's easier to be single. It's polite to keep ____(quietly) in the library.(用适当形式填空) It's hard to keep the house ____with there kids.智者进入 It’s difficult to keep up _______ these changes in fashion It is easier to go downhill than _climb up hill keep it to yourself什么意思？ The more time you waste ，the easier it is to go on wasting time