I will go on with the experiment unless my mother _____ me to stop.
All of us felt______when we heard the _____news.
The students said they would have____holiday.
You can’t go back home______you finish your homework.
— Why not join us in the game, Joe? —________, but I have to finish reading the book first.
—Look,the light in Jim’s room is still on. Do you know______? —To study for the coming exam, maybe.