I developed very slowly and it took nearly two hundred years I was built as an analytical machine by Charles Babbage.
We shouldn’t spent our money testing so many people, most of __________ are healthy.
Last week, only two people came to look at the house, __________ wanted to buy it.
You can find whatever you need at the shopping centre, __________ is always busy at the weekend.
I was given three books on cooking, the first __________ I really enjoyed.
She was educated at Beijing University, __________ she went on to have her advanced study abroad.