Tim is in good shape physicallyhe doesn't get much exercise.A. ifB. even thoughC. unlessD.

问题补充：

Tim is in good shape physicallyhe doesn get much exercise.

A. if

B. even though

C. unless

D. as long as

答案：

A. if

(答案→)B. even though

C. unless

D. as long as

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