-- How do you study a test? -- I study listening to tapes.
—Will you please ________ do that? —OK, I won’t.
We had fun ________ the robots do many different kinds of things.
The boss makes the workers ________ long hours every day.
—________ will you come back from your work, Dad? —In about half an hour, dear.
There _______an important meeting this afternoon. All of you should attend it.