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His parents are convinced ______the fact that his son always focuses his mind ______his study.   

A. of; on                   B. of; at              C. by; to                    D. on; at

The course will give a general introduction, _________, it also provides practical experience.

   A. In fact         B. Above all       C. Apart from      D. In addition

Yesterday, I met my old friend ________, which gave me a big surprise.

   A. in return                   B. on purpose               C. by chance                 D. in case

________, the northerners like noodles while the southerners are fond of rice in China.

A. In common                  B. In general             C. In total               D. In return

Messi is famous ________ a football player and he is famous ________ his wonderful skills.          

A. for; as                B. with; for            C. as; for              D. like; as

What I said was so      that I finally convinced them     my honesty.

  A. convincing; of              B. convincing, for

  C. convinced; of               D. convinced; for

people have always been curious ______ how living things on the earth exactly began.

   A. in        B. at       C. of      D. about

Many Chinese universities provided scholarships for students ______ financial aid.

    A. in favour of              B. in need of                C. in face of                 D. in honour of

“As long as you pay_________ we won’t charge for delivery,” the shopkeeper said to the customer.

   A. in general           B. in case            C. in fact            D. in advance

For those who work with their brains, exercise is ______.

A. of very value     B. of great valuable              C. great valuable           D. very valuable