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It was only after he had read the papers ________ Mr.Gross realized the task before him was extremely difficult to complete.????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? (2013·大綱全國(guó)，30)

A．when?? B．that

C．which? D．what

Only by increasing the number of doctors by 50 percent ________ properly in this hospital.????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? (2013·大綱全國(guó)，32)

A．can be the patients treated

B．can the patients be treated

C．the patients can be treated

D．treated can be the patients

________small，the company has about 1,000 buyers in over 30 countries.(2013·天津，5)

A．As? B．If

C．Although? D．Once

At no time________the rules of the game.It was unfair to punish them.(2013·遼寧，26)

A．they actually broke

B．do they actually break

C．did they actually break

D．they had actually broken

The university estimates that living expenses for international students________around $8,450 a year，which________a burden for some of them.????????????? ????????????? ????????????? ????????????? ????????????? ????????????? (2013·湖南，33)

A．are；is? B．are；are

C．is；are? D．is；is

Not once________to Michael that he could one day become a top student in his class.

(2013·湖南，35)

A．occurred it? B．it did occur

C．it occurred? D．did it occur

Read this story，________you will realize that not everything can be bought with money.????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? (2013·四川，4)

A．or? B．and

C．but? D．so

It was with the help of the local guide ________ the mountain climber was rescued.

(2013·重慶，27)

A．who? B．that

C．when? D．how

Film has a much shorter history，especially when________such art forms as music and painting.????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? ????????????? (2012·新課標(biāo)全國(guó)，32)

A．having compared to

B．comparing to

C．compare to

D．compared to

Not until he retired from teaching three years ago ________having a holiday abroad.

(2012·遼寧，32)

A．he had considered

B．had he considered

C．he considered

D．did he consider