问题

_________as one of the most important inventions of the time, the computer helps people living in different countries to do a lot of things.

A:Knowing
B:Known
C:To know
D:Know;

正确答案是：

同类题型

I am shocked at the news that many pupils were killed in the terrible traffic accident.— So am I. Little the safety of the poor children. [ ]

t have attended the meetingyesterday,___________ he

One of the men held the view ________ the book said was right.[ ]

Thosewho_________singingmayjoinus.

Mr. Smith thinks running is _________ than gymnastics.