A. complicated B. technically C. ample D. sore A. before long B. lose face C. read out D. twin A. work B. Calais C. eminent D. bother A. the Potala Palace B. have classes C. interplanetary D. undertake A. here is B. grandson C. arbitrary D. You're welcome A. initial B. friction C. out of control D. bring back to life A. take part in B. in vain C. squeeze D. lecturer A. read a book B. toy C. draft D. embryo A. exit B. what a pity C. fit in D. loaf A. would B. drainage C. cast down D. amaze