She couldn't wait ________ home after such a long and tiring journey.
| A．going | B．to go | C．go | D．went |
（届山东省桓台第二中学高三4月检测考试英语试卷）
We need some more facts and figures ______ we make the final decision.
| A．since | B．before | C．after | D．until |
（届北京市海淀区高三下学期期中练习英语试卷）
You cannot take back your words ______ they are out of your mouth.
| A．before | B．whether | C．once | D．while |
（届陕西省西工大附中高三第七次适应性训练英语试卷）
_______ I went to the South Lake in Hanzhong, I was deeply impressed with its beautiful scenery.
| A．For the first time | B．The first time |
| C．At first | D．It was the first time |
（届山东省实验中学高三第一次模拟考试（三诊）英语试卷）
It will be about 100 days __________the College Enhance Examination comes.
| A．when | B．as | C．before | D．since |
（届山东省济宁市曲阜师大附中高三上学期期中考试英语试卷）
Sometimes people just believe what they see, ______the reality may be different.
| A．as if | B．even though | C．since | D．unless |