. --- He has to finish the experiment today. He must be in the lab,________? ---That s quite possible.
Don't________the dictionary________you meet with a new world while reading.
Although we live in the same city, we haven't________with each other for a long time.
________to be the best among the competitions, he was given $ 20,000 as a reward.
At the________of audience, the famous singer sang another one.
—What would you do if it________tomorrow? —We have to carry it on, since we've got everything ready.