Definition: in the past, but not now Level: B1
这所房子曾经属于我的祖父。
This house ___once belonged to my grandfather.
现在的电脑比它们曾经便宜得多。
Computers are much cheaper nowadays than they ___once were.
我曾经去过英格兰，并且我喜欢那里的服装风格。
I ___once went to England and I love the style of the clothes there.
