When his mother came in, the boy pretended ______.
In April, 2009, President Hu inspected the warships in Qingdao, the 60th anniversary of the founding of the PLA Navy.
not to miss the flight at 15:20, the manager set out for the airport in a hurry.
____ twice, the postman refused to deliver our letters unless we changed our dog.
All of them try to use the power of the workstation ___ information in a more effective way.
For breakfast he only drinks juice from fresh fruit ___ on his own farm.