________ all the homework assigned by the school, the students have to work at it till midnight.
A．Completing B．To complete
C．Having completed D．To have completed
With a great weight ________ off her mind, she passed all the tests successfully.
A．taking B．taken
C．to take D．being taken
________ an astronaut into space in 2003, China became the third country to send a woman into space in June, 2012.
A．Having first put B．To have first put
C．First putting D．Being first put
________ themselves, the employees in this company usually have a coffee or tea during their break time.
A．Refreshing B．To refresh
C．Refresh D．Having refreshed
For further details about our newly developed products ________ our company's website.
A．visiting B．visit
C．to visit D．visited
Born in a remote village ________ by endless mountains in Yunnan, I always dream of ________ the outside world.
A．surrounded; seeing B．surrounding; seen
C．surrounding; seeing D．surrounded; see
