Rick isn’t here，______you can leave a message on his desk.

It is required that the studentsmobile phones in their school, so seldomthem using one.

While many people are excited about these new technologies, these same technologies frighten others. Nowhere __________ truer than with genetically modified (GM) food.

bout the performance last night I stayed therefor only a while.- ________, it turned out the best one I haveever seen.

You can’t borrow books from the school library ______ you get your student card