---Isn’t that your teacher over there? ---No, it ______ be him. I’m sure he doesn’t wear glasses.
The office ordered his soldiers ________.
On seeing Jay Chow appear on the stage, the audience ______ cheering.
As prices______ too much in town, he decided to go to the countryside and make a living by______ sheep.
---- Have you finished your experiment report, Jane? ----- Oh, my God. I’ve _______ forgotten all about that.
We’ll not attend the meeting _____ we are invited.