41. During her study in Massachusetts Institute of Technology she has got the degree _____ PhD, and it is a degree ______ chemistry.
The man ________ coat is black is waiting at the gate.
_________ cleans the classroom can go home first.
The police caught the man _______ stole my handbag.
The girl ________ is reading under the tree ________ my sister.
George Mallory was an English teacher _______ loved climbing.