A. be responsible for B. borrow C. laughter D. new A. advance B. development C. professional D. radio frequency A. thousands of B. dispose C. in rags D. tale A. impatiently B. spread C. pop singer D. jeep A. in a way B. clear C. excellent D. delighted A. ocean B. result C. bulb D. Don't worry A. deliberately B. by hand C. wham D. awkward A. item B. memory C. relic D. multicultural A. my goodness B. pencil sharpener C. disinfectant D. wait and see A. human B. Cuba C. first D. store