定语从句练习题1、 单项填空1. -Who is the man _ was talking to our English teacher? -Oh! Its Mr Baker, our maths teacher.A. he B. that C. whom D. which 2. I hate the people _ dont help others when they are in trouble.A. who B. which C. they D. where3. The foreigner _ visited our school is from Canada.A. which B. when C. who D. whom4. George Mallory was an English school teacher _ loved climbing.A. who B