1. The world will live happier lives if people have ____ better understanding of _____ idea of harmonious globe.
A. the; a B. /; the C. a; an D. a; the
2．Helplessly, the package I was expecting was _____ to the wrong address.
A. delivered B. given C. packed D. written
3．Could you tell me ______ use the newly-produced iPad can be of to our daily life?
A．how B．if C what D．whose
