Before you leave the house.make sure the doors and windows( ).A are closed B to be closed C will be closed D closed此题考的是什么 为什么选a 不选d表示被动

问题描述:

Before you leave the house.make sure the doors and windows( ).
A are closed B to be closed C will be closed D closed
此题考的是什么 为什么选a 不选d表示被动

make sure 跟that 从句后面需要完成的句子不用非谓语