_____ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world．

A．Being separated                                  B．Having separated

C．Having been separated                            D．To be separated

—English has a large vocabulary, hasn’t it?

—Yes．_____ more words and expressions and you will find it easier to read and communicate．

A．Known         B．Knowing          C．To know        D．Know

This is a very interesting book．I’ll buy it, _____．

A．how much may it cost                          B．no matter how it may cost

C．however much it may cost                       D．whatever may it cost

Faced with a bill for $10,000, _____．

A．Smith has taken an extra job                      B．the boss has given Smith an extra job

C．an extra job has been taken                        D．an extra job has been given to Smith

—Have you been wasting time on computer games again?

—_____．I’ve been studying a lot and I need a break．

A．No way        B．Not really        C．I don’t agree         D．I couldn’t agree more

She was so angry and spoke so fast that none of us understood _____ she said meant．

A．that         B．what            C．that that               D．what what

A woman with a bleeding hand hurried in and asked, “Is there a hospital around _____ I can get some medicine for my wounded hand?”

A．that          B．which          C．where             D．what

Before he was arrested, he had taken _____ one-month holiday, and stayed in the country with

_____ 18-year-old girl, one of his colleagues．

A．a; a            B．an; an              C．an; a            D．a; an

By all _____, you must try every _____ to help him．

A．mean; mean                                       B．means; means

C．means; mean                                      D．mean; means

Everyone knows that Canada is the second largest country in the world, larger than _____ country

in Asia．

A．any         B．any other       C．other         D．another