A. retire B. private C. moo D. rectangular A. console B. lead C. the greenhouse effect D. silk worm A. bomb B. keep doing C. hero D. beach A. artist B. catch fire C. relationship D. studied A. speaker B. black-and-white C. fall in love D. with the help of A. humorous B. invention C. on average D. Muslim A. repetitive B. lesson C. significant D. smelly A. news B. detective story C. invent D. girl A. laugh B. country C. rarely D. historian A. schoolbag B. behaviour C. thriller D. dark