--- How do you study ______ a test? --- I study ______ working with a group.
I wonder_________it is worth_________.
—Why didn’t you go to the movie yesterday? —Because I_________it before.
He raised his voice to make everybody in the room_________him clearly.
—Would you like to have_________? —No, thank you. I’ve had enough.
—Dad, could you buy me a computer like this? —Of course, we can buy_________one than this, but_________it.