--- Thank you for _____ me with this heavy box.
--- You are welcome.
| A．helping | B．to help | C．help | D．helped |
------ Do you know where Li Ming is working _____? ------ Maybe in Guangzhou, I think.
| A．at first | B．at least | C．at last | D．at present |
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 |