A. lighthouse B. in memory of C. keep in order D. spaceman A. guilty B. immigrant C. refer to D. run down the stairs A. never mind B. a great deal C. firmly D. cheetah A. love B. marker C. electricity D. essay A. unlikely B. flashback C. lunar probe D. correct A. nightfall B. blow out the candles C. appetite D. class A. organizational B. base C. each other D. one after another A. hospital B. postcode C. be famous for D. soy A. apologetic B. linguistics C. date from D. distance A. give a helping hand B. helpless C. unbelievable D. absorbing