8种时态的主动语态造句 每种时态各造2个句子,共造16个句子. 急!! 在线等.

1、It is so good that it should increase the grade.
2、~~~was~~~~~~~~~~~~~~~~~~~~~~~increased~~~~~~~~~.
3、~~~has~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d~~~~~~~~~~~~~~~~~~~
4、~~~has been~~~~~~~~~~~~~~~~~~~~~~~~~~d~~~~~~~~~~~~~
5、`~~had~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~d~~~~~~~~~
6、~~~has beeing~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
7、~~~should have~~~~~~~~~~~~~~~~~~~~~~~d~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8、~~~must have been~~~~~~~~~~~~~~~~~~~~d~~~~~~~~~~~~~~~~~~~~~~~~~~~

一般现在时：He is a first—year student.