make sure
make sure：尽力做到；深信；务必；务请；
make sure后可有三种情况：
make sure of sth： 对……确信
make sure to do sth ：一定要做某事
make sure that+从句：意思和make sure to do一样，可能出现省略should的虚拟语气用法，即直接用动词原形。
来自：wuliaokankan.com
如：
To make sure that he was at home,I called him up in advance.为了确定他在家，我事先打电话给他。
Make sure that you put down every word she says.切实要记下她说的每一个字。
Make sure the central heating be off.集中供暖设备务必关掉。Make sure you read all the small print before signing.一定要先看清小号字体印刷部分再签字。
make sure后可有三种情况：
make sure of sth： 对……确信
make sure to do sth ：一定要做某事
make sure that+从句：意思和make sure to do一样，可能出现省略should的虚拟语气用法，即直接用动词原形。
来自：wuliaokankan.com
如：
To make sure that he was at home,I called him up in advance.为了确定他在家，我事先打电话给他。
Make sure that you put down every word she says.切实要记下她说的每一个字。
Make sure the central heating be off.集中供暖设备务必关掉。Make sure you read all the small print before signing.一定要先看清小号字体印刷部分再签字。