题目内容
_________ we have been classmates for three years, she hasn’t left me much impression, so I can’t remember her after graduation.
| A．Since | B．Although | C．Because | D．Unless |
B
解析试题分析：句意：虽然我们同学三年，但是她没有给我留下深刻的印象，所以我毕业后不记得她了。四个选项的含义分别是：A. Since自从，因为，B. Although虽然，C. Because因为，D. Unless除非，因为我们是同学和我记不得她是转折关系，所以用although。所以选B。
考点：考查连词辨析
I haven’t had a phone in the house for three weeks now, and it’s several days ____I used a phone box last time.
| A．as | B．when | C．if | D．since |
In time of serious accidents, ________ we know some basic things about first aid, we can save lives.
| A．whether | B．until | C．if | D．unless |
____ I'm mistaken, I've seen that tall man at a party before.
| A．If | B．As | C．Unless | D．When |
Some of my workmates prefer to send to our QQ group ______ news they got.
| A．whatever | B．however | C．whichever | D．whenever |
Be sure to take a trip to the Wadesell． it's a long drive on a dirt road，it's well worth the trouble．
| A．Only if | B．Now that | C．Even though | D．In case |
I have a tight budget for the trip, so I'm not going to fly _ the airlines lower ticket prices.
| A．once | B．if | C．after | D．unless |
Sinking in the cheers of people, David walked off the stage, tears dropping he could stop them．
| A．after | B．when | C．until | D．before |