Many college students are willing to work in Western China after graduation ________, poor and backward as it is, more opportunities of employment are available.
| A．where | B．when | C．that | D．which |
（2014年四川省宜宾市高三二诊英语试卷）
I wish to thank Professor Smith, without ______ help I would never have got this far.
| A．who | B．whose | C．whom | D．which |
（届湖南省长沙市重点中学高三第七次月考英语试卷）
Actually you can make learning English a process, ________ you can not only learn much knowledge but also interesting cultures.
| A．which | B．where | C．when | D．what |
（2014届北京市丰台区高三下学期统一练习（一）英语试卷）
The woods are remains of a huge forest once covered the whole area.
| A．where | B．which | C．whose | D．when |
（2014届北京市东城区高三3月质量调研英语试卷）
My brother’s bedroom is always a mess, and he can never find anything, _________ is very frustrating.
| A．where | B．whom | C．when | D．which |
（届北京市海淀区高三下学期期中练习英语试卷）
The App WeChat provides a networking platform ______ communication is faster and easier.
| A．which | B．where | C．when | D．why |