Howdiditthathumansspeaksomanyd

How did it______ that humans speak so many different languages?

A．come out

B．come off

C．come about

D．come round

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-–She looks very happy. She ________have passed the exam.
--I guess so. It’s not difficult after all.

A．should

B．must

C．could

D．might

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Progress ________so far very good and he is sure that his new book will be finished on time.

A．was

B．had been

C．has been

D．will be

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I haven’t read the book for __________ long _______I’ve forgotten what it is about.

A．such; that

B．so; as

C．so; that

D．such; as

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_____________ well prepared you are, you still need a lot of luck in finding a suitable job.

A．However

B．Whatever

C．No matter

D．Although

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___________________, and we will do the work better.

A．Given more time	B．Give us more time
C．Giving us more time	D．Having given us more time

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