. It’s so nice to hear from her again. _____, we last met each other more than 30 years ago.
After Jack had sent some e-mails, he______ working on his project. (2012 .山东)
Is honesty the best policy? We ______that it is when we are little.
Only ________ can you hope to make improvement in the operating system.
—______ the only house of Mr Smith got completely burnt out?—That's right.
How do you ______ a car accident when it happens?