A. on board B. red C. colleague D. pencil-box A. comet B. Indonesia C. calm down D. affluent A. cycling B. do some cleaning C. rule D. glory A. socialist B. listen C. progressive D. weekday A. dance B. speak C. get into the habit of D. happen A. lucky B. geography C. abstruse D. has A. Miss B. athletics C. very D. stalactite A. take out the rubbish B. fill in C. tenant D. cross A. behind B. in the daytime C. highway D. downstream A. in front of B. living room C. package D. capsule