----I failed again. I wish I _________ harder.---But you _________.
The windows haven’t cleaned for a long time. They need ______.
Our teachers are really ______. They often work in their office far into the night.
Visitors were at the pictures that the guide showed.
His grandparents were born in ______ Qing Dynasty, while he was born in ______ 1920’s.
—I didn’t mean _______ her. —But talking like that means _______ her.