1 . My eldest son, ______ work takes him all over the world, is in New York at the moment.

A．who

B．which

C．what

D．whose

2 . Indeed, his slim but strong body is just like that of millions of Chinese farmers, to ________ he has devoted his life.

A．which

B．who

C．whom

D．what

3 . My head teacher has taught me a lot,        I am grateful.

A．for that

B．for which

C．of which

D．of whom

4 . The Monkees produced a new record in 1996, ____they celebrated their former time as a real band.

A．when	B．in which
C．that	D．with which