Sorry, LiMing, I’m afraid I have to ______. Someone is calling me.
In order to help the police, the eyewitness described what he had seen very carefully not to______ any key clues.
Diaoyu Island issue, unless ________ properly, will directly affect smooth development of relationships between China and Japan.
Netizens are frequently reminded to be ________ about revealing (透露) their personal information on the Internet.
We must apply what we have learned to our daily work because in no case _____ from practice.
Everyone can and every dollar counts. Please join us and donate(捐赠) some money to help earthquake victims.