She often wears the same kind of skirt ___ her twin sister does. A, that B.which C.as D.what
_____ David goes, he is welcome.
The house stood _____ there had been a rock.
Small _____ it is, the pen is a most useful tool.
After the new technique was introduced, the factory produced _____ tractors in 1988 as the year before.
The piano in the other shop will be _____, but _____.