A. hesitate B. look forward to C. proposition D. border A. over B. without C. prince D. Russia A. concert B. become C. majority D. sister A. tangible B. triumph C. deduce D. reply A. headmaster B. look through C. programmer D. cable car A. take a trip B. slept C. magnetize D. soldier A. assiduously B. sad C. crucible D. basement A. hear from B. contrivance C. half an hour D. clean the room A. onion B. message C. increasing D. opening A. balance B. hike C. radical D. until