His teacher told him that since his parents were working abroad, either his grandparents or one of his uncles ______ allowed to come to the parents’ meeting .
----- “Where is Mother.” ------ “She is still in the kitchen. She _______ the housework all morning.”
In the late afternoon, it is cold that our water bottles froze.
I’d like to go straight to help people, ________ when they are in trouble.
My plane _________ at 8:30 am, so I _________ home early tomorrow morning.
Sorry, sir. I broke the window glass, but I didn’t do that ______.