The students in our school g______ teachers very politely是greet还是greeted啊?

The students in our school g______ teachers very politely是greet还是greeted啊?
The students in our school g______ teachers very politely
是greet还是greeted啊?

The students in our school g______ teachers very politely是greet还是greeted啊?
greeted 问候的一般过去时

按道理来说都可以 只不过一般在没有明显时间标志的情况下 都是采用一般现在时。
选前面一个吧