Mary is very clever and _____ worth teaching, but her brother is not. Look, he is now _____ asleep in class.
Catherine Ⅱ had the Amber Room moved to a palace outside St. Petersburg __________ she spent her summers.
The doctor __________ she sent her friend is very well known.
Do you know the factory, __________ products are of high quality?
Jim passed the driving test, __________ surprised everybody in the office.
I am going to meet Tom __________ they say is a good boy.