问题
“ ________ I went through ups and downs in life，” Gordon said, “I never found the importance of being self-disciplined as well as the significance of life.”
A:If;
B:Since
C:Until;
D:Unless;
B:Since
C:Until;
D:Unless;
正确答案是：
同类题型
Why did Miss Yang look so worried when we saw her —Because she wondered __________.
These machines can help recycle the waste which would ______be thrown away [ ]
There is a hole _____ the wall. The wind is blowing in ______the hole.
The villagers, _________ had been damaged by the flood, were given help by the Red Cross.