When will the second class begin—________ two minutes.

do you mind if I invite some friends to my birthday party—______. It will be more interesting.

People have heard _______ the President has said; they are waiting to see _______ he will do

obile phone has become a major means of communication, _____us to keep in touch as well as to surf the Internet to keep us _____of the latest news.

st call them every week. -Yes, I _____.