1 . I’ll never forget Professor Smith, ______ influence I took up teaching, determined to dedicate myself to the rewarding career.

A．on which

B．that

C．under whose

D．who

2 . Last summer we visited the West Lake, ________Hangzhou is famous in the world.

A．for which

B．for that

C．in which

D．what

3 . There are nearly one hundred foreign students in our university, most of________ are from America and Australia.

A．which

B．them

C．whom

D．those

4 . Many lessons are now available online, from _____ students can choose for free.

A．whose

B．which

C．when

D．whom

5 . This is the small house less than 15 square meters, under _______ roof lives a large family of three generations.

A．which	B．whose
C．as	D．that

6 . He worked in a car factory for four years, ______ he founded his own company in his hometown.

A．after which	B．after when
C．after that	D．after it