The systemn has been designed to give students quick and easy to the digital resources of the library.
—Have you understood what he really means? —___________.
—I’m driving to Beijing after breakfast. —Take care,with all this fog.
______ providing entertainment, the website also turns out to be a helpful learning tool.
Nowadays, sending e-mails to each other has become a way ______________ what they think to others.
After that, he knew he could ________any emergency by doing what he could to the best of his ability.