21.   As local institutions like Boston University and Boston College have grown over recent years, the city has been pressing them to build more housing for their undergraduate students.

22.   As more and more troops leave, fear grows over the future of the new democracy.

23.   As a scandal grew over the massacre, then-Governor Ruben Figueroa remained defiant, blaming the violence on the victims.

24.   As anticipation of a final settlement grew over recent weeks, the stocks of cigarette makers have risen on Wall Street.

25.   As the acrimony grows over the legitimacy of the vote count, the tainted winner may have little better chance to enact his agenda than his vanquished opponent.

26.   As the economy grew over the years, the deficit would shrink as a proportion of the economy.

27.   As the number of members grew over the years, brokers abandoned their chairs to trade on their feet.

28.   As NASCAR has grown over the past five decades, it has had its share of growing pains.

29.   As the rest of the island grew over the years, however, Franklin Avenue peaked and gradually lost its luster.

30.   At a time when impatience was growing over the hunt for bin Laden, the anticipation over the tape filled the void.