A. go cycling B. stretch C. Chinese tiger D. concentrate A. sportswear B. crowded C. high-rise D. roof A. space B. throat C. rubbish bin D. halfway A. better B. firework C. fat D. season A. pea B. shyly C. Rome D. on the other hand A. cylinder B. habit C. ponytail D. solitude A. gently B. instead of C. camel D. hostile A. instead B. revolve C. litter D. make the bed A. appoint B. first aid C. tyre D. normally A. peculiar B. aggravate C. all the time D. involved