With the help of the new technology, you __ e-mailyour friends by mobile phone.

_________ difficult the t

143As is recorded in history, silkworms were first raised by a woman in ______ is today Hebei Province

I’m sorry, but I didn’t mean to keep you waiting here for a long time. Can you______ me?[ ]

Did you visit the famous museum ?　 —No. We ______ it. But we spent too much time shopping.