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I got to the office earlier that day,   the 7:30 train from Paddington.

A．caught            B．to have caught      C．to catch           D．having caught

Since nobody gave him any help, he    have done the research on his own.

A．can              B．must             C．would            D．Need

We      very early so we packed the night Before.

A．leave             B．had left           C．were leaving       D．have left

The watch was very good, and he    20 percent down for it.

A．a(chǎn) good one        B．a(chǎn) Better one       C．the Best one       D．a(chǎn) Best one

 It was only after he had read the papers    Mr. Gross realized the task Before him was extremely difficult to complete.

A．when            B．that              C．which            D．What

A serious study of physics is impossible     some knowledge of mathematics.

A．a(chǎn)gainst           B．Before            C．Beyond           D．Without

Only By increasing the numBer of doctors By 50 percent    properly in this hospital.

A．can Be the patients                      B．can the patients Be treated

C．the patients can Be treated                D．treated can Be the patients

Four and   half hours of discussion took us up to midnight,and   Break for cheese,chocolate and tea with sugar.

A．a(chǎn);a              B．the; the           C．不填；the         D．a(chǎn);不填

 It's an either-or situation - we can Buy a new car this year or we can go on holiday But we can’t do     .

A．others            B．either            C．a(chǎn)nother           D．Both

-Are you sure you won't come for a drink with us?

-     ,if you insist

A．Not at all          B．It depends         C．All right then       D．I don't care