The factory produces half a million pairs of shoes every year, 80％ ________ are sold abroad．

A．of which

B．which of

C．of them

D．of that

He was very rude to the customs officer, ________ of course made things even worse．

A．who

B．whom

C．what

D．which

Anyway, that evening, ________ I’ll tell you more about later, I ended up staying at Rachel’s place．

A．when

B．where

C．what

D．which

________ is often the case, we have worked out the production plan．

A．Which

B．When

C．What

D．As

Helen was much kinder to her youngest son than to the others, ________, of course, made the others envy him．

A．who

B．that

C．what

D．which

There were dirty marks on her trousers ________ she had wiped her hands．

A．where

B．which

C．when

D．that

I work in a business ________ almost everyone is waiting for a great chance．

A．how

B．which

C．where

D．that

The journey around the world took the old sailor nine months, ________ the sailing time was 226 days．

A．of which

B．during which

C．from which

D．for which

________ is reported in the newspapers, talks between the two countries are making progress．

A．It

B．As

C．That

D．What

The English play ________ my students acted at the New Years party was a great success．

A．for which

B．at which

C．in which

D．on which