A. star in B. fire C. spaceship D. take away A. ought to B. impossible C. call off D. hide-and-seek A. look through B. system C. cloakroom D. poor A. half B. be satisfied with C. none D. get out A. potato chips B. recuperation C. remarry D. news A. final B. model C. straggle D. monument A. babysitter B. for example C. fifteen D. communicate A. moon B. yuan C. Mediterranean D. chapter A. at present B. take a trip C. galaxy D. tick tock A. fourth B. weightlessly C. consideration D. astronaut