There are ______ workers in this factory. My brother is in it ,too.
| A．thousand | B．thousands of |
| C．thousand of | D．three thousands |
You should keep working hard ____ you have passed the exam.
| A．since | B．because | C．so | D．even though |
Li Ming is in poor health. He should pay more attention _________ exercise.
| A．to take | B．to taking | C．for taking | D．in taking |
______, the boy won the prize.
| A．In surprise | B．To our surprise | C．Be surprised | D．Be surprising |
You don’t have to take notes ________ I tell you to do so.
| A．if | B．when | C．because | D．unless |
“Let'splayfootballafterschool.”“________.”
| A．Goodidea. | B．You'rewelcome | C．Thankyou | D．Yes,ofcourse |