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AIDS is said _______ the biggest health challenge to both men and women in that area over the past few years.

A. that it is      B. to be      C. that it has been     D. to have been

When you read the book, you’d better make a mark _____ you have any questions.

A. at which                B. at where      C. the place   D. where

I always prefer _______ a bike rather than _______ to work.

A. riding, drive     B. to ride, drive

C. ride, driving     D. to ride, driving

— Remember the first time we met, Jim?

— Of course I do. You _______ in the library.

A. were reading      B. had read         C. have read        D. read

-- In the countryside you can enjoy fresh air, blue sky and quiet surroundings.

--- _______ more and more retired people are escaping from the crowded city.

A. It is no wonder       B. It is no doubt

C. There is no need      D. There is no possibility

The country with only a population of about 10, 000 _______ nearly 40 small islands..

A. consists of     B. is consisted of

C. makes up      D. are made up of

 --- _______ that he picked up French?

--- It was in 2010 _______ he traveled in France.

A. Was it when; that        B. When was it; that

C. Was it when; when       D. When was it; when

The police _______ the stolen jewellery and returned it to the owner.

A. searched   B. hunted          C. invented    D. recovered

_______ the necklace borrowed from her friends made her ______ completely.

A. Losing; upset                                   B. To lose; to be upset

C. Losing; upsetting                             D. Lost; upset

Not until the stadium of Bird’s nest was completed in the end _______ back to their normal position.

A. did our hearts got                 B. did our hearts get

C. our hearts got                         D. our hearts did get