A.The visiting economist has given several lectures.B.The guest lecturer’s opinion is different from Dr. Johnson’s.C.Dr. Johnson and the guest speaker were schoolmates.D.Dr. Johnson invited the economist to visit their college.
A.The visiting economist has given several lectures.
B.The guest lecturer’s opinion is different from Dr. Johnson’s.
C.Dr. Johnson and the guest speaker were schoolmates.
D.Dr. Johnson invited the economist to visit their college.