The WTO cannot live up to its name ________ it does not include a country that is home to one fifth of mankind.

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I would appreciate it ________ you call back this afternoon for the doctor's appointment.

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I was really anxious about you. You ________ home without a word.

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I ________ pay Tracy a visit, but I am not sure where I will have time this Sunday.

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What would have happened ________, as far as the river bank?

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A．Bob had walked farther

B．if Bob should walk farther

C．had Bob walked farther

D．if Bob walked farther

It is hard for me to imagine what I would be doing today if I ________ in love, at the age of seven, with the Melinda Cox Library in my hometown.

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Look at the trouble I am in! If only I ________ your advice.

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①________ to take this adventure course will certainly learn a lot of useful skills.

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A．Brave enough students

B．Enough brave students

C．Students brave enough

D．Students enough brave

②If I had ________. I'd visit Europe, stopping at all the small interesting places.

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A．a long enough holiday

B．an enough long holiday

C．a holiday enough long

D．a long holiday enough

－Are you coming to Jeff's party?

－I'm not sure, I ________ go to the concert instead.

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What surprised me was not what he said but ________ he said it.

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