He made a wonderful discovery, of great importance to science.A which I think is B. which I think it isC. which I think it D. I think which is
“Can I get you a cup of tea ? ”“____”
She ________ his number in the phone book to make sure that she had got it right.
In Britain today women ________ 44% of the work force,and nearly half the mothers with children are in paid work.
_______ our food ________,we had to walk to a village for help.
The practice of children working in factories has nearly ________.