People like taking photos because photos are the _______ of youth and history and can remind us of many happy scenes.

A. witness          B. guidance         C. evidence         D. approval

For sustainable development, the government has decided to give          to those energy conserving and environment-friendly business in many aspects.

A. profit  B. interest  C. advantage         D. preference

It’s a major          for Obama and his national security team, to fulfill the goal once voiced by Obama’s predecessor, George W. Bush, to bring to justice the mastermind （设计者）of the 9-11 attacks.

A. anecdote       B .accomplishment      C. negotiate         D. campaign

While the government says there is a(n) ________supply of houses，prices of apartments have been going up these years.

A. unconditional    B. precise            C. abundant       D. short

— Why do English people talk so often about the weather when they start a conversation?

— Well, it’s probably the weather is a(n) __________topic.

A. safe              B. ordinary             C. primitive         D. conventional

The director added a few characters and changed some names in this movie but _______ this is a true story.

A. completely            B. necessarily       C. essentially       D. gradually

Founded by Li Kaifu in September 2009, Innovation Workshop is ____ to help Chinese young people create successful starting-up companies

   A. commented            B. confirmed       C. concluded      D. committed

There is even an animal whose tail will         so that it can run away if someone grabs it.

    A. break up            B. break out       C. break off      D. break down

.To improve your health, you can _________ 25— 30 minutes three or four times a week to do simple things such as walking ,cycling or running .

A. give off          B. turn down         C. take over        D. set aside