( )your paper carefully before you hand it in.填空 Do not( )something before it happens.填空

问题描述:

( )your paper carefully before you hand it in.填空 Do not( )something before it happens.填空

第一个是:Check
交卷之前检查好了的意思.
第二个……不能保证.afraid of .吧.第二个没见过这样子的句子啊~