Poor Richard spent his last penny on a bowl of noodles. Now he is______.
Stephen Hawking believes that the earth is unlikely to be the only planet_______life has developed gradually.
Between the two generations, it is often not their age, _________their education that causes misunderstanding.
—Ken has gone to the Africa country to work as a volunteer.— I would rather he _____there. The situation there is very tense.
What the children in the mountain village need ______ good books.
In front of our school ______, where a lot of people play or take exercise at any time.