1. (2019·江西模拟) 请听对话，回答问题。

Mum, can I play the computer?<br />Of course, you can.<br />But you have to finish your homework.<br />Work must come first, do you know?<br />OK.<br />I do it at once, and how long can I play?<br />What about half an hour?<br />Millimeters, maybe it's too short.<br />An hour, OK.<br />OK.<br />Mum, can I play the computer?<br />Of course, you can.<br />But you have to finish your homework.<br />Work must come first, do you know?<br />OK.<br />I do it at once, and how long can I play?<br />What about half an hour?<br />Millimeters, maybe it's too short.<br />An hour, OK.<br />OK.<br />I do it at once, and how long can I play?<br />OK.<br />I do it at once, and how long can I play?<br />OK.<br />I do it at once, and how long can I play?<br />OK.<br />I do it at once, and how long can I play?<br />OK.<br />I do it at once, and how long can I play?<br />OK.<br />I do it at once, and how long can I play?<br />OK.

1. （1） The boy has to _____ first.

   A . study B . work C . play
3. （2） The boy can play the computer for _____ at last.

   A . half an hour B . ten minutes C . sixty minutes