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单选题

It is a joy to hear ________ apologies that are from the bottom of one's heart.

A. real
B. true
C. sincere
D. realistic

单选题

He badly _____________ his back digging in the public garden on Children's Day.

A. stretched
B. exerted
C. pulled
D. strained

单选题

I don't have much free time as my work _______ all my time.

A. takes away
B. takes over
C. takes up
D. takes in

单选题

Many cookbooks have very ________ directions.

A. common
B. confirmed
C. complicated
D. compound

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