it ( ) very interesting 怎么填? A are B is C am D was

问题描述:

it ( ) very interesting 怎么填? A are B is C am D was

分两种情况
1.如果讲现在的情况,眼前的事情很有趣,就选 B is
2.如果讲过去的情况,过去的事情很有趣,就选 D was