A. carnival B. up and down C. imperceptible D. rope A. cotton B. touch C. futile D. accelerate A. steep B. adolescent C. disused D. the Great Wall A. male B. ageing C. dress up D. koala A. checker B. flat C. chain D. take a walk A. overheads B. the Opera House C. product D. the Arctic A. dividend B. documentary C. shawl D. went camping A. senior B. whisper C. pin D. glance A. tell B. bookstore C. forgive D. robust A. erase B. remind of C. linguist D. foreman