问题
选择题
The Smiths consider _____ a computer, which is commonly considered _____ a great help in their work and study.
A．to buy; to be
B．buying; to be
C．to buy; being
D．buying; being
答案
答案：B
考查短语：考虑做某事consider doing sth，被认为，be considered to be，句意：史密斯一家考虑买一台电脑，普遍被认为在他们的工作和学习中非常有帮助。所以选B。