Mother wanted to be a good provider, a role she ______ since her marriage to Father

Later，CatherineⅡ had the Amber Room ________ to the palace outside StPetersbergwhere she spent her summers[ ]

Where do you think _____ he _____ the computer？—Sorry，I have no idea

The lack of money forced them to________their research

I’m surprised to see that he has an_____look on his face.