________ by reporters about the case, Mr. Sun said Chongqing takes a clearcut attitude and is taking resolute measures.
A．Having asked B．To be asked
C．Asking D．Asked
Life is like riding a bicycle. ________ your balance, you must keep moving.
A．Keeping B．To keep
C．Keep D．Having kept
________ 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
