1.I have been teaching in this school since 1998.(用for改写句子)I have been teaching in this school( )( )( ).2.The workers have been working for eight hours.(改为一般疑问句)( )the workers( )( )for eight hours?

问题描述:

1.I have been teaching in this school since 1998.(用for改写句子)
I have been teaching in this school( )( )( ).
2.The workers have been working for eight hours.(改为一般疑问句)
( )the workers( )( )for eight hours?