The old pictures bring them to the days ______they spent together, ____life was hard but happy.

(2013·四川成都高中畢業(yè)班第一次診斷)My mother and her old friends talked of some things and people ________ they remembered in the school.

(2013·鄭州高中畢業(yè)班第一次質(zhì)量預(yù)測(cè))The Voice of China has set up a big stage for young people with a talent for music, ________ some of them have stood out among others.

The new CRH train between Beijing and Shanghai ________ speed can reach about 380km/h will benefit ________ takes it.

I wish to thank Professor Smith, without ______ help I would never have got this far. 

–When did he come back last night?
--It was at 8 o’clock ________ I was watching a documentary on TV.

Actually you can make learning English a process, ________ you can not only learn much knowledge but also interesting cultures.

The woods are remains of a huge forest                once covered the whole area.

My brother’s bedroom is always a mess, and he can never find anything, _________  is very frustrating.

He introduced the neighbour _____ he is getting on well to me.