问题
选择题
Computers and the advantage _________ gave us _________ being made better use of presently.
A．that;is
B．they;are
C．it;was
D．which;were
答案
B
定语从句及主谓一致的运用。they代表computers,后者presently的出现表明是现在被更好的利用,且主语为复数。